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Absurdum is a Javascript utility library built with a focus on providing idempotent side-effect free functions and clear/readable modular source for tree shaking.

Features

• Explores the flexibility of Reduce
• Abstraction Free -> tree-shake friendly
• Functional -> all operators are side-effect free
• Polyfills -> includes operator polyfills for older browsers
• Isomorphic -> works consistently across all JS runtimes
• Typescript -> typings are provided for all operators
• Intellisense -> supports code completions + inline documentation
• Well Tested -> includes 600+ tests covering every aspect

Imports

This package works isomorphically in browsers and server-side JavaScript runtimes

Browsers

Import directly from the local path or a CDN

Top-level operator namespaces (ie [arrays, objects, strings]) can be imported from the index

<script type="module">
import { arrays, objects, strings } from 'path/to/absurdum/index.js'
</script>

The minified version can be imported from

<script type="module">
import { arrays, objects, strings } from 'path/to/absurdum/index.min.js'
</script>

Node

Install the package

npm install @vanillaes/absurdum

Top-level operator namespaces are provided

import { arrays, objects, strings } from '@vanillaes/absurdum';

Individual operators can also be imported from their parent namespaces

import { chunk, find } from '@vanillaes/absurdum/arrays';
import { assign, invert } from '@vanillaes/absurdum/objects';
import { camelCase, repeat } from '@vanillaes/absurdum/strings';

Note: Webpack's tree-shaking algorithm doesn't work with multi-layered exports. To optimize bundle size, prefer individual operator imports.

Usage

Import an operator and feed it some inputs

const input = ['a', 'b', 'c', 'd'];
const output = reverse(input);
console.log(output);
// > ['d', 'c', 'b', 'a']

Tip: For VSCode users. Input type-checking, intellisense, and inline documentation are all supported.

API Documentation

Arrays

Operator	Lodash	Polyfills
chunk	_.chunk
compact	_.compact
difference	_.difference
drop	_.drop
dropRight	_.dropRight
fill	_.fill	Array.prototype.fill
filter	_.filter
find	_.find	Array.prototype.find
findIndex	_.findIndex	Array.prototype.findIndex
findLastIndex	_.findLastIndex
flat	_.flatten	Array.prototype.flat
frequency
intersection	_.intersection
map	_.map
pull	_.pull
take	_.take
takeRight	_.takeRight
union	_.union
unique	_.uniq
unzip	_.unzip
without	_.without
xor	_.xor
zip	_.zip

Objects

Operator	Lodash	Polyfills
assign	_.assign	Object.assign
at	_.at
defaults	_.defaults
defaultsDeep	_.defaultsDeep
entries	_.toPairs	Object.entries
filter	_.filter
findKey	_.findKey
findLastKey	_.findLastKey
forIn	_.forIn
fromEntries	_.fromPairs	Object.fromEntries
get	_.get
has	_.has
invert	_.invert
mapKeys	_.mapKeys
mapValues	_.mapValues
merge	_.merge
pick	_.pick
result	_.result
transform	_.transform
values	_.values	Object.values

Strings

Operator	Lodash	Polyfills
camelCase	_.camelCase
chomp
deburr	_.deburr
endsWith	_.endsWith	String.prototype.endsWith
includes		String.prototype.includes
kebabCase	_.kebabCase
pad	_.pad
padEnd	_.padEnd	String.prototype.padEnd
padStart	_.padStart	String.prototype.padStart
pascalCase	_.startCase
repeat	_.repeat	String.prototype.repeat
reverse
snakeCase	_.snakeCase
startsWith	_.startsWith	String.prototype.startsWith
trimEnd	_.trimEnd	String.prototype.trimEnd
trimStart	_.trimStart	String.prototype.trimStart
truncate	_.truncate
words	_.words