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newbieDictionary 📖

Open source content maintained by Faye Sipiano
Freelance technical writer, mentor, blogger, strategist, marketer, vet nurse, teacher 👩

As well as creating and maintaining this open source dictionary, I am also a technical writer and tech blogger.

I am intent on making tech more friendly, busting one jargon at a time! In my 'What ** is**' series, I explore common tech terms such as 'API' and 'hoisting' as well as technologies such as Vue, React, Tailwind and Docker!

Here, we can all contribute and help each other on this journey of understanding.

Never contributed to Open Source before?!

That's cool - consider this your gateway.. Click the 'fork' button (in the top right), make your additions in your 'own version', and then create a pull request (definition below) to put it back into this main version! I'll review it and then add it in. 😄

Fork button


Consistency (is key!)

Word -

Definition



Sometimes, (well for me at least) it very much seems that this industry has overcomplicated words and phrases for things on purpose.

You may be learning from someone who has been in the industry for a while, and for them, these words just make sense.

But do they make sense to you, as a newbie?

Absolutely not


                                                  📖

A11y -

A numeronym for accessibility, where the number 11 refers to the number of letters omitted. A11y refers to the accessibility of a computer system to all people, regardless of disability type or severity of impairment.

AJAX -

AJAX is not a programming language. AJAX stands for Asynchronous Javascript And XML. However, it does transport other types of data such as JSON.

AJAX just uses a combination of:

  • A browser built-in XMLHttpRequest object (to request data from a web server)
  • JavaScript and HTML DOM (to display or use the data)

API -

Stands for Application Programming Interface, is a software intermediary that allows two applications to talk to each other, is a contract between you and the software that you want to use, telling you what you can and can't do with it. It's a bridge allowing you to use the software and integrate it with your code, so that it becomes easier to integrate. Example- The google maps API allows you to integrate their maps to your apps through their API.

Arrays -

Arrays are containers that hold variables, they're used to group together similar variables. You can think of an array like a book shelf where books are kept next to each other in a row. Similarly arrays are stored in memory as a continuous block.

ASCII -

Stands for 'American Standard Code for Information Interchange'. It is the set of common characters use in electronic communication, based in English alphabet, numbers, punctuation symbols and non-printing control characters (like Escape, Tabulation, Backspace, End of Line, etc). This standard is the base line to newer sets of characters like UTF-8 standard, that extends ASCII including new characters like Latin or German characters by example.

Authentication -

Authentication is the process of recognizing a user's identity. In authentication, the user or computer has to prove its identity to the server or client. Authentication by a server entails the use of a username and password. It is the process of validating the identity of a registered user before allowing access to the protected resource.

Authorization -

Authorization is the process of determining a user's access levels, or permissions, to various systems or features once authenticated. For example, a user may be authorized for read-only access or administrator access.

Babel -

A JavaScript transpiler that converts edge JavaScript into plain old ES5 JavaScript that can run in any browser (even the old ones). Currently, most browsers support ES5.

If you want to learn about ES6. All the good features of ES6 accompany one big problem — the majority of browsers don’t fully support them. That’s when Babel comes to its work. Babel may be a JS transpiler that converts new JS code into old ones. It is a really flexible tool in terms of transpiring. One can easily add assets such as es2015, es2016, es2017, or env; so that Babel compiles them to ES5.

Bcrypt -

The bcrypt hashing function allows us to build a password security platform that scales with computation power and always hashes every password with a salt. The process of generating salt is done using genSalt() and then the passwords that need to be hashed are hashed with this salt and bcrypt-ed password is ready. This works on the bluefish encryption algorithm.

Boilerplate (code) -

Ready to use code you add as part of your document that requires none to minimal change. An example is frameworks. Let’s take Bootstrap as an example. To use it, you need to copy and paste in a bunch of code that you get from the official website in order for you to be able to use it. Other examples of boilerplate is the folder structure and files generated by create-react-app.

Not to be confused with template.

Bug -

A bug is a general term used to describe any unexpected problem with hardware or software. Its different from an error. Error is a message shown to let user know that something went wrong while bug is a problem in the code that caused the error.

Cache -

A cache (pronounced as cash) is a temporary memory or storage area, for example, in browser or cloud.

Caching -

Caching is the process of storing temporary data into a cache. For example, when we make a request to an API for the first time, we store the response's data into the browser's cache so that when we need the same data again then we don't need to make a request to the API, we can just get it from the cache. This helps in reducing network calls and make our apps faster.

Callback function -

A function (Plug-in) passed as an argument to another function or method (Worker). The function Worker call the function Plug-in within its context with the corresponding data, i.e.:

// Notify functions are our Plug-ins

function notifyByAlert(msg) {
  alert(msg)
}

function notifyByConsole(msg) {
  console.log(msg)
}

function notifyBySweetAlert(msg) {
  Swal.fire({
    icon: 'info',
    title: msg
  })
}

// This function is our Worker
function greetings(name, callback)  {
  let message = `Hello ${name}`
  callback(message)
}

// Here we'll inject our Plug-in functions, in other words, a callback

greetings('Test #1', notifyByAlert)
greetings('Test #2', notifyByConsole)
greetings('Test #3', notifyBySweetAlert) // this one require sweet alert 2 lib

CI/CD -

This is a method whereby a product is continuously delivered to a customer by introducing automation at each stage of development. The term CI/CD means Continuous Intergration/Continuous Delivery/Deployment.

CLI -

See Terminal or Cli

Can also stand for Common Language Infrastructure. A tool, developed by Microsoft, to allow different languages to be understood and interpreted by different computer programs, rather than having to restructure the architecture and build behind it.

Compiler -

A compiler is a program that translates computer programs written using letters, numbers, and characters into a machine language program that can be read and executed by a computer. For example gcc compiler is used to compile a C program.

Compile time -

Compile time refers to the time duration during which the statements written in any programming language are checked for errors.

Content -

The substance of a website or digital experience. Content refers primarily to the text written for & placed on webpages, meant for consumption by the reader. You can also refer to images, videos, and documents integrated with the text as 'content.'

Cross-platform

Cross-platform development is the practice of developing software products or services for multiple platforms or software environments. Engineers and developers use various methods to accommodate different operating systems or environments for one application or product.

CRUD -

Create Read Update Delete

Those are the four basic operations a software application should be able to perform. Typically refers to operations performed in a database or datastore, but it can also apply to higher level functions of an application such as soft deletes where data is not actually deleted but marked as deleted via a status.

Cryptography -

The art of hiding secrets and researching for secure communications, to protect them from third parties.

Dapp -

A Dapp, or decentralized application, is an application built on a decentralized blockchain network using smart contracts and Web 3.0 javascript libraries. Examples for Dapps include web3 wallets, cryptocurrency savings accounts, and NFT marketplaces.

DDD -

Domain Driven Design.

Career programmers face many different problems. It could be something critical and nuanced like code to control a nuclear reactor; Or something simpler like a door sensor.

In either case, the programmer must come to understand the problem the code is solving to effectively solve it. As the code is written and more requirements are gathered, the programmer's understanding will expand. As that understanding expands, the code must be updated to reflect it.

Source code that starts as a collection of 'foos' and 'bars' should evolve into a more meaningful document. Terms used by the end user will match the terms used by the programmer. In this way, domain driven design leads to more productive conversations between software engineers and users.

tl;dr: your variable and function names will be terms that your users are familiar with.

Delimiter -

A delimiter is a character that marks the beginning or end of a section. Common delimiters are commas (,), semicolon (;), quotes (""), braces ({}), pipes (|), or slashes ( / \ ).

Example of using a delimiter in C++ programming language
The braces ({}) are used to show the beginning and end of a function. As shown in line 1 and 5.

1. int main(){
2. std::cout<< "Hello Newbie Dictionary";
3. return 0;
4. 
5. }

Design Pattern -

Design patterns are design level solutions for recurring problems that all software engineers often come cross and its most times created for and used by OOP languages,like Java. Its like an industry standard or description on how to tackle software problems and designs solutions. Using these patterns are considered a good practice, as the design of the solution is tried and tested, resulting in good readability of the final code. There are about 26 Patterns but mainly there are five well-known design patterns possible to implement in a wide scope of programming languages:

  • Singleton Pattern/Creational.
  • Abstract Factory Pattern.
  • Builder Pattern.
  • Factory Method Pattern.
  • Prototype Pattern.

Destructuring -

This means to unpack values in a data structure such as an Object or Array.

Directory -

Another word for folder. ”Navigate to the correct directory” = go to the right folder.

Documentation -

The produced content from a technical writer. Documentation provides a reference, tutorial, or explanation for a specific product, service, or action. Its intended audience can include developers, administrators, and users.

DOM -

Stands for Document Object Model. Always in capitals like that. A place in the browser to see a page’s HTML, CSS, and JavaScript all working together like a happy little family. You can type in it and add stuff. Useful when making a website and you want something to look a particular way. See Manipulating the DOM

Double -

A double is a double-precision, 64-bit floating-point data type. It accommodates 15 to 16 digits, with a range of approximately 5.0 × 10−345 to 1.7 × 10308.

  • Double precision value
  • Stores up to 15 significant digits
  • Double is costlier, occupies more space and is more effective when more precision is required. For example, currency conversion, financial reports and transactions, scientific calculations etc…

Electron -

Electron is a framework for cross-platform desktop applications using Chromium and Node.js.

It’s easy to build cross-platform apps using HTML, CSS, and JavaScript. Your app will be compatible with Mac, Windows, and Linux operating systems right out of the box. 8. Source code - Source code is the list of human-readable instructions that a programmer writes—often in a word processing program—when he is developing a program. The source code is run through a compiler to turn it into machine code, also called object code, that a computer can understand and execute. Object code consists primarily of 1s and 0s, so it isn't human-readable.

Encapsulation -

Encapsulation is one of the core concepts in object-oriented programming which involves hiding data members within a class and making it available only through the methods.
When we declare data members as public, the data members are readily accessible by other classes and that exposes the internal workings of the class, thereby violating encapsulation. Therefore, we declare members to be private to hide the data members of the class from the other classes. Thus, using the private and protected keywords.

Environment -

Where you are working within your computer. For example, if you are making a webpage, your environment would be a text editor or IDE and the browser window.

Endless loop -

See Infinite loop

Firebase -

A platform developed by Google to build mobile and web applications. It provides services like Authentication, Realtime Database, Cloud Firestore , Cloud Storage, Cloud Functions,web hosting, ML Kit etc.

-You’re gonna save a ton of time and money using Firebase products rather than trying to build them yourself.

Float -

A float is a single precision, 32 bits floating-point number used to save data to memory, i.e. It can hold 6-7 significant digits with decimal points. e.g. 1.2 x 10^-38 to 3.4 x 10^+38 It's a common way for computers to store decimal numbers or fractions.

float b = 0.0;

Framework -

A platform for developing software applications. It has rules, instructions and some boundations which makes it different from a library. Since they are often built, tested, and optimized by several experienced software engineers and programmers, software frameworks are versatile, robust, and efficient. It is a language written to help you to write code easier. Often comes with boilerplate code to get you started.

Function -

The block of code that you can call by name, a function is independent of an object.

Function & variable naming conventions -

A naming convention is a set of rules for choosing the character sequence to be used for identifiers which denote variables, types, functions, and other entities in source code and documentation.

  • camelCase: Writing names without spaces or punctuation, indicating the separation of words with a single capitalized letter. Example:
    • helloWorld
    • newbieDictionary
  • Pascal Case: Making the first letter of each word capitalized. Often used when writing code to name functions, classes, and other objects. Example:
    • Car
    • LinkedList
  • kabab-case: Putting a hyphen between words in order to improve readability while allowing them to be used as variables in code. Example:
    • hello-world
    • active-multiplier
  • snake_case: Putting an underscore between words to improve readability, and for languages where a hyphen would be interpreted as a subtract operation Example:
    • hello_world
    • python_rocks
  • SCREAMING_SNAKE_CASE: snake_case but louder (all caps), often used to easily distinguish macros and constants from variables Example:
    • HELLO_WORLD
    • HOST_NAME

Git -

The name of a version control system. Involves branches and trees, pushing and pulling. All in all a great time.

GitHub -

The name of a hosting service for storing and interacting with git repositories. GitHub provides additional collaboration tools on top of git, such as Pull Requests, Issues/bug reports, wiki, and other features. Other popular git hosting services include BitBucket and GitLab.

IDE -

Stands for ‘Integrated Development Environment’. It is somewhere that you write code, and has tools to help you write, structure and test it. Build, test, connect to databases, the works!

Headless CMS -

A Headless CMS is a back-end Content Management System where the content (data) is stored in a repository or a bucket which can be delivered to the presentation layer (for examples: web page, mobile app) with the help of an API. It is different from a traditional CMS as it is independent of the presentation layer and the same content can be reused across different platforms and devices.

The presentation layer of a website is the “head” of a CMS, we are separating the head from the body (back-end layer of the CMS), that's why the name "Headless" CMS.

Hoisting

This is a javascript concept whereby the interpreter automatically moves varaiables and function declarations to the top of the code.This enables the variable or function to be called first, and declared later.

MyName("Lucy");

const MyName = function(name){
   console.log("My name is" +name);
};

For more information on hoisting, please take a look at Faye's 'What is hoisting?' article

HTTP -

HTTP or Hypertext Transfer Protocol is the set of guidelines for transferring files such as texts, videos, sounds, images, and other multimedia files through the World Wide Web. The moment a Web user opens the browser, the user is indirectly making use of HTTP.

HTTP Status Codes

HTTP Status codes are part of the response data returned by an HTTP request, which signals to the client about the result in a way that is easy for code to understand. Common status codes include:

  • 200 - OK. This is the status response for a successful request. When you visit a webpage, and the webpage loads fine, this is the response.
  • 400 - Bad Request. Often returned when the request's data is bad and cannot be handled by the server.
  • 403 - Forbidden. Usually returned if the request does not have authorization to access the resource (missing login details for example)
  • 404 - Not Found. Returned when a requested resource does not exist
  • 500 - Internal Server Error. Used when there is an server internal error (i.e. a bug)

A full list and detailed explanation of each status can be found here.

HTTPS

Stands for “Hypertext Transfer Protocol Secure” which means the webpage has a special layer of encryption added to hide your personal details and passwords. Hence, if you wish to secure your bank account details at an online shopping site, look for “https” in the URL.

Infinite Loop

An infinite loop is a sequence of instructions that lacks a functional exit meaning that it repeats indefinitely. It is sometimes called an endless loop.

code snippet of an infinite loop using C++ syntax

 int main() {
 for ( int i = 1; i < 20; i-- )
   std::cout << "Infinite Loop has occured!!" << '\n' << endl;

return 0;

}

Integer -

An integer (pronounced IN-tuh-jer) is basically a data type in programming language and also an integer is a whole number (not a fractional number) that can be positive, negative, or zero.

JSON -

Stands for JavaScript Object Notation. JSON is a common data format (a way data is written), originally derived from JavaScript, many programming languages now have the ability to use JSON. JSON data types include: number, string, boolean, array, object, or null. Basic JSON might look like this:

{
    "firstName": "Faye",
    "lastName": "Sipiano",
    "age": 27,
    "eyeColor": "blue",
}

Kernel -

A piece of software running as a communicator between regular software and hardware, containing all the lower-level functions to talk to the hardware and providing an API for the software to modify the state of hardware interfaces securely. Example - The Linux Kernel

Key-Value Pairs

Key-value pairs let us give labels (or keys) to pieces of information (or values). We can use the labels to retrieve that information later on. They are also called attribute-value pairs. The key is like an index, but can be a more sensible way to name a piece of information than by its position. We can add key-value pairs to data structures like objects (e.g. in JavaScript), or dictionaries (in Python). Pair a key with its value by using a colon between them. Separate each complete pair with a comma when entering them. E.g. {keyA: valueA, keyB: valueB, keyC: valueC} contains three key-value pairs.

LAMP -

Acronym for "Linux Apache MySQL PHP." A 'LAMP Stack' groups these software applications into a platform usable for server testing, or local server deployments.

Library -

A collection of functions which can be added to your application and the functions called as necessary, just like any other functions in the application. More precisely any object, not only functions can be stored in a library, but the vast majority of libraries only contain functions.

Linter -

A linter is a tool used to analyze source code and flag programming errors, bugs, and stylistic inconsistencies. It checks the code against a set of predefined rules or guidelines and produces a report of any issues found.

Linting -

Linting is a process used in software development to analyze source code and identify potential errors, bugs, and inconsistencies. It typically involves using a tool called a linter, which parses the code and checks it against a set of predefined rules or guidelines.

Local/locally -

On your computer “You can access it locally”

For the opposite of Local, see Remote

Loop -

A loop is a sequence of instructions that is continually repeated until a certain condition is reached.

Manipulating the DOM -

Just means changing something (usually JavaScript) in the DOM.

Machine Learning -

A realm of study within the domain of artificial intelligence that aims to develop techniques in software which allow machines to learn through experience.

Method -

The block of code that you can call by name that is associated with an object (in javascript, every function treated as object,So in simple words, A method is on an object)

MEAN Stack -

MEAN is a free and open-source JavaScript software stack for building dynamic web sites and web applications. The MEAN stack is MongoDB, Express.js, AngularJS, and Node.js.

MERN Stack -

MERN Stack is a Javascript Stack that is used for easier and faster deployment of full-stack web applications. MERN Stack comprises of 4 technologies namely: MongoDB, Express, React and Node.js.

MEVN Stack -

MEVN stack is the open-source JavaScript software stack that has emerged as a new and evolving way to build powerful and dynamic web applications. This stack consists of MongoDB for NoSQL Database, Express.js for building the server, VueJS for front-end and Node.js.

Module bundler -

A module bundler is a tool used by developers to put all JavaScript files and their dependencies into one or several files. They help developers manage all the dependencies included and the relationship between them. Although the main goal of module bundlers is to bundle JavaScript files, they can also be used for other types of files and assets. Examples are Webpack and Parcel.

MVC -

Model View Controller

It's a pattern in software design commonly used to implement user interfaces, data, and controlling logic. It emphasizes a separation between the software's business logic and display.

The three parts of the MVC software-design pattern can be described as follows:

  1. Model: Manages data and business logic.
  2. View: Handles layout and display.
  3. Controller: Routes commands to the model and view parts.

Namespace (in javascript) -

While we are working on web applications using JavaScript functions and files, it would become difficult to challenge code. So to help us manage this code, we have a keyword ‘Namespace’ which will create mini objects of different modules or functionalities to make code readable. JavaScript does not provide Namespace by default but this functionality can be replicated. It is a container providing scope for set of identifiers, type names, functions or variables, and methods, etc. to prevent collisions among them. It can be created with ease, so with minor tweaks, a namespace can be created.

Example: First, we need to initialize an empty Namespace: like var = { };

Then to access variables in the namespace, .

Similar to Objects in JavaScript, we initialize and access this namespace as objects.

var sampleNamespace = {
  function_one: function()
  {
    // body of code
  },
  function_two: function()
  {
    // body of code
  }
};

...

sampleNamespace.function_one ();

This JavaScript Namespace functionality can be replicated by creating a global object which contains all functions and variables. In modern web applications, different libraries and components are used, so we should have namespace to avoid code ambiguity.

NaN -

Stands for 'Not a Number'. In JavaScript typeof NaN is Number.

Nextjs -

Next.js is a React framework built by Zeit, and according to nextjs.org:

With Next.js, server rendering React applications has never been easier, no matter where your data is coming from.

Next.js also supports static exporting, but for the purposes of this post, we are focused on that “server rendering” capability mentioned above.

Also see React

Node.js -

Node.js is JavaScript Runtime Environment that runs the V8 JavaScript engine outside of the browser. JavaScript is a single-threaded language (it cannot run two processes simultaneously), but Node.js provides a set of asynchronous functions that perform input/output operations in a non-blocking manner, allowing Node.js to handle several concurrent conections with a single server with ease. It allows frontend developers to write server-side code using JavaScript without the need of learning another language.

npm -

npm is a package manager for the JavaScript programming language maintained by npm, Inc. npm is the default package manager for the JavaScript runtime environment Node.js. It consists of a command line client, also called npm, and an online database of public and paid-for private packages, called the npm registry.

Objects -

In code, you can create an ‘object’ that you can refer to later, for example you can create a ‘person’ with a first name and last name, an age, and an eye colour. This can then be used again if you wanted to create another ‘person’

var person = {firstName:"Faye", lastName:"Sipiano", age:27, eyeColor:"blue"};

Object prototypes -

Every object in JavaScript has a built-in property, which is called its prototype. Prototypes are the mechanism by which JavaScript objects inherit features from one another. Prototypes are objects themselves, and so they will also have prototypes of their own, creating what is known as a "prototype chain." This chain ends when a prototype returns a value of "null" for its own prototype. If a property cannot be located on an object itself, the prototype chain is then searched, until either the property is found, or the end of the chain is reached, in which case a value of "undefined" is returned.

Open source -

A project or repository that anyone can request to make changes or updates to. This is a good way to learn. For example, this dictionary is Open Source.

Parse -

(Unnecessarily overused) term for 'read through'

Ex: "I found your dictionary easy to parse" Translation: "I found your dictionary easy to read through, thanks!

Parsing -

The process of taking data in one format and transforming or converting it into another format. For example, converting JSON format of data to Objects in JavaScript.

Port -

Computers use port numbers to determine to which process or application a message should be delivered. As network addresses are like street address, port numbers are like suite or room numbers. Any program may use any port, though some port numbers have a standard use and some programs may be limited in which ports they can use for security reasons

Pseudocode -

A human-readable explanation of how something should work – the way and order that it runs in. Pseudocode does not have to follow the rules of any programming language. It is a description of what the code in a program is doing so that even non-technical individuals can understand its logic.

PR -

Stands for 'pull request'. Means that you are requesting that the changes or edits you have made be reviewed and eventually merged (in git) Also known as MR for 'merge request'

PR -

Also a marketing term meaning 'Press release'. Means anything going out to be published into the wide world for others to see. You could create a PR for a PR I suppose...

PWA -

PWA stands for Progressive Web App. It is basically a website that gives the look and feel of a native app.That means it is an incredible mix of the best of both, the web and native applications.

Features- 1) No need to download and install. 2) One canadd it to home screen. 3) Offlice functionality using service worker's. 4)Quick loading. Drawbacks- 1) No indoor geolocation -it cannot access Bluetooth. 2) No consumer data access like contact and socil profiles. 3)High battery usage.

Recursion -

Some algorithms can be reduced to a simple function that acts on the value returned by another run of itself, when a function calls itself as part of such an algorithm, this is known as recursion. Common recursive algorithms include list traversal, or tree searches, or mathematical sequence generation.

Recursive algorithms must have an end condition so that it doesn't recurse infinitely. However, care must be taken when using recursion, as a practical limitation of recursion is high stack memory usage, which can lead to a problem known as stack overflow (which the popular programming question & answer website is named after)

Also see Recursion

Reactjs -

An open-source, front end, JavaScript library for building user interfaces or UI components. It is maintained by Facebook and a community of individual developers and companies. React can be used as a base in the development of single-page or mobile applications.

Refactor -

Means to look over and rewrite your code in a different way. Maybe you learned a better way to do it, so you rewrite it. ”I’m going to spend today refactoring old code because I learned so much since I first wrote it!”

Regex -

Short for regular expression, a regex is a string of text that allows you to create patterns that help match, locate, and manage text. Its a sequence of characters that define a search pattern which come very handy in many cases like form validation, searching stuff, etc

Remote -

Not on your computer – stored on someone else's machine/server. Usually means you need to log in, through a portal or …... to be able to access it.

For the opposite of Remote, see Local

Repository -

A house for your code, stored online. Repositories are collections of source code

Responsive Web Design -

The practice of designing websites so that they adapt gracefully to different-sized devices like phones, tablets, wearable devices, etc. If you’re able to visit a website on your phone and it looks just as proportional and seamless as it does on your computer, it’s an example of responsive web design.

ReST (Representational State Transfer) -

A uniform interface which allows for a standard way to transfer and manipulate resources. Communication occurs through methods, like GET a resource, POST a new one, or DELETE a resource. This allows for software to share and manipulate data over a network connection through a standard interface. Browsers generally use the GET and POST methods to serve websites, but many others exist for different use cases.

Runtime -

Runtime is the time period during which a program is running on a computer. If an operation occurs at ‘runtime’, it occurred when a program is running or the moment at which the program begins to run. Also known as execution time.

Salt -

A salt is a random string. By hashing a plain text password plus a salt, the hash algorithm’s output is no longer predictable. The same password will no longer yield the same hash. The salt gets automatically included with the hash, so you do not need to store it in a database.

Scrum/Agile -

Methodical frameworks for organizing, developing, delivering and maintaining software. Scrum and Agile disciplines can be applied to a wide variety of fields but has been a popular choice in software development due to its effective approach to handling very complex tasks.

SDK -

SDK stands for software development kit or devkit for short. It’s a set of software tools and programs used by developers to create applications for specific platforms. SDK tools will include a range of things, including libraries, documentation, code samples, processes, and guides that developers can use and integrate into their own apps. SDKs are designed to be used for specific platforms or programming languages. Thus you would need an Android SDK toolkit to build an Android app, an iOS SDK to build an iOS app, a VMware SDK for integrating with the VMware platform, or a Nordic SDK for building Bluetooth or wireless products, and so on. https://en.wikipedia.org/wiki/Software_development_kit

Server-Side Rendering -

To load up a client-side or universal app to HTML on the server. Either using Rehydration or Prerendering the app as static HTML on the server. Teams often factor in the impact of SEO when choosing a strategy for the web. To use SSR or Not. SSR delivers a "complete looking" exprience for crawlers and can interpret code with ease.

Service Worker -

A service worker is a type of web worker. It's essentially a JavaScript file that runs separately from the main browser thread, intercepting network requests, caching or retrieving resources from the cache, and delivering push messages.

  • Because workers run separately from the main thread, service workers are independent of the application they are associated with. This has several consequences:
  • Because the service worker is not blocking (it's designed to be fully asynchronous) synchronous XHR and localStorage cannot be used in a service worker. The service worker can receive push messages from a server when the app is not active. This lets your app show push notifications to the user, even when it is not open in the browser.

Singleton Pattern -

The Singleton Pattern limits the number of instances of a particular object to just one. This single instance is called the singleton. Singletons are useful in situations where system-wide actions need to be coordinated from a single central place. An example is a database connection pool. The pool manages the creation, destruction, and lifetime of all database connections for the entire application ensuring that no connections are 'lost'.

Singletons reduce the need for global variables which is particularly important in JavaScript because it limits namespace pollution and associated risk of name collisions. The Module pattern (see our Dofactory JS product) is JavaScript's manifestation of the Singleton pattern.

Several other patterns, such as, Factory, Prototype, and Façade are frequently implemented as Singletons when only one instance is needed.

Sample code (Javascript)

var Singleton = (function () {
  var instance;

  function createInstance() {
    var object = new Object("I am the instance");
    return object;
  }

  return {
    getInstance: function () {
      if (!instance) {
        instance = createInstance();
      }
      return instance;
    }
  };
})();

function run() {
  var instance1 = Singleton.getInstance();
  var instance2 = Singleton.getInstance();
  alert("Same instance? " + (instance1 === instance2));
}

Smart Contracts -

Smart contracts are computer programs or protocols for automated transactions that are stored on a blockchain and executed when predetermined terms and conditions are met.

Solidity -

Solidity is an object-oriented programming language created specifically by the Ethereum Network team for developing and deploring smart contracts on Blockchain networks.

Code Snippet

// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.8.6 <0.9.0;
                              
/// A contract for demonstrate how to create a contract
                              
contract Test {
  // Declaring variable
  string faye;

  // Defining a constructor
  constructor(string memory str_in){
  	faye = str_in;
  }
  // Defining a function to return value of variable 'faye'
  function str_out() public view returns(string memory){
  	return faye;
  }
}

Source Code -

Any collection of code that is displayed in a human readable format. Source code can be sent to a compiler to be translated into machine code for the CPU to utilize.

SPA -

Stands for Single Page Application. A web app that loads with a single browser load. While the app can contain multiple "pages", these are either already pre-loaded, and displayed using Javascript; or content is fetched dynamically using an API without loading a new page (a loading icon may be displayed, or the content fetched in the background while the user scrolls)

SSG -

Stands for "static site generator." An application which converts text styled with markup language (e.g. Markdown) into HTML files for publication on the Web.

SQL -

Stands for "structured query language" and pronounced either as sequel or saying each letter(ess-cue-ell). It's a programming language for databases (like MySQL, PostgreSQL, and others) that lets you add, delete, and update data.

String -

A string is a data type used in programming, such as an integer and floating point unit, but is used to represent text rather than numbers. It is comprised of a set of characters that can also contain spaces and numbers. For example, the word "hamburger" and the phrase "I ate 3 hamburgers" are both strings. Even "12345" could be considered a string, if specified correctly. Typically, programmers must enclose strings in quotation marks for the data to be recognized as a string and not a number or variable name.

Symlink -

Symlink (Symbolic link), which is also known as soft link, is a type of file that serves the purpose of directing to a file or directory (known as the "target") by indicating its path.

Syntactic sugar -

Syntax within a programming language that is designed to make things easier to read or to express.

TDD -

Definition

Task runners -

A task runner is a program that can be configured to do a series of tasks that developers would have to do by hand otherwise, which would be a repetitive and time-consuming process. An example would be set a task runner to compile stylesheet files other than CSS into CSS files for browsers to understand. You can concatenate several tasks to run one after the other, or tell the task runner to watch for changes to automatically update the files. Examples are Gulp and Grunt.

Technical debt -

Extra development work that arises when code that is easy to implement in the short run is used instead of applying the best overall solution. If you keep implementing short term solutions, you'll soon be paying a lot of interest (Time, money) when adding new features because the codebase will be a mess.

Technical Writing -

The practice of writing technical reference/educational material. This includes Documentation. Technical writing is not exclusively used in the tech industry and although knowledge of technology and technological practices are often useful, it is not an entry requirement in thtis field.

Template -

Template is code you use to build new code from. It is a model or pattern you use as a starting point that you modify for a specific use-case.

Not to be confused with boilerplate explained above.

Terminal or CLI -

The place where you type commands directly to the computer. You don’t need this at the beginning, but at least you know what it is.... It looks like a small word document but is black and makes you feel like a hacker. Some people get really excited about it. CLI stands for ‘Command Line Interface’.

For another definition of CLI, see CLI

Text editor -

Somewhere that you can write code. Microsoft Word is a text editor. Notepad is a text editor. It is pretty much just somewhere that you can hit the keyboard and stuff appears... “We need to access this remotely, do you have your login details?”

Transpile -

The process of turning code from one language into another. Examples include: TypeScript transpiled into JavaScript, CoffeeScript transpiled into JavaScript, Earl Grey being transpiled into JavaScript, JavaScript being transpiled into JavaScript. You’ll notice a trend.

TTFB -

Time to first byte (TTFB) is a measurement used as an indication of the responsiveness of a web server. How fast do you see the page? It measures the duration from the user or client making an HTTP request to the first byte of the page being received by the client's browser. Google Chrome Lighthouse reports can describe TTFB.

Typecasting -

Typecasting is a process of converting a value of one data type to another. The process is achieved by the use of a cast operator. For instance, if a variable is of data type double and we want to convert it to int, we have to wrap the int data type in parenthesis immediately before the variable.
Example:

double myDoubleVariable = 20.85;
int myIntVariable = (int)myDoubleVariable;

UI -

Stands for User Interface, this is used to describe what the website will generally look like - the buttons and the navigation bar etc. UI is the look of the site. Linked with UX*

UX -

Stands for User Experience, and is used to describe the way that a user navigates around and interacts with your site/app. UX is the feel of the site. Linked with UI

Version Control or Source Control -

A system for managing changes and edits made to a document. Popular version control systems (VCS) include Git and Subversion (SVN).

Virtual Machine (VM) -

Software that makes it possible to use one computer operating system (like Linux) on a computer running another system (like MacOS). Examples include Virtual Box, Parallels, and VM Ware.

Virtual Environment(venv) -

A virtual environment is basically a folder structure in a Python project that contains just the right dependency/package you need to run a project. It is lightweight and isolated from other projects, this ensures that complications do not occur from varying versions of a package. To set up a venv on Python, open your terminal and run the following command: python -m venv venv (note that venv is the venv name and you can use any name but it is advisable to name it venv) Once the folder is created, cd into Scripts and open "activate", the path should be like venv\Scripts\activate. To read more details about virtual environments, click here

Web3 -

Web3 refers to an internet technology that is built on blockchain technology, it aims to be decentralized and provide users with better control over their online data and assets and to create a more secure and transparent internet. Web3 technologies aim to allow for decentralized applications, read more about dApps here

VueJS -

Vue.js is an open-source model–view–viewmodel front end JavaScript framework for building user interfaces and single-page applications. It was created by Evan You, and is maintained by him and the rest of the active core team members.

Webpack -

Webpack is an open-source JavaScript module bundler. It is a module bundler primarily for JavaScript, but it can transform front-end assets like HTML, CSS, and images if the corresponding loaders are included. Webpack takes modules with dependencies and generates static assets representing those modules.

Yarn -

Yarn is a software packaging system developed in 2016 by Facebook for the Node.js JavaScript runtime environment. An alternative to the npm package manager, Yarn was created as a collaboration of Facebook, Exponent, Google, and Tilde to solve consistency, security, and performance problems with large codebases.

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**I have made this dictionary Open Source (definition below!) to enable us all to add and learn from each other!**

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