refactor: update the code base, drop support of node<10

Update 06/2020

.gitignore

@@ -1,16 +1,31 @@
-coverage.html
+#       OS        #
+###################
+.DS_Store
+.idea
+Thumbs.db
+tmp/
+temp/
+
+
+#     Node.js     #
+###################
+node_modules
+package-lock.json
+
+
+#       NYC       #
+###################
+coverage
+*.lcov
+.nyc_output
+
+
+#      Files      #
+###################
 *.seed
 *.log
 *.csv
 *.dat
 *.out
 *.pid
 *.gz
-
-pids
-logs
-results
-
-node_modules
-npm-debug.log
-coverage/

.mocharc.json

@@ -0,0 +1,4 @@
+{
+  "reporter": "spec",
+  "timeout": 1000
+}

.npmrc

@@ -0,0 +1 @@
+package-lock=false 

.nycrc

@@ -0,0 +1,12 @@
+{
+  "extension": [
+    ".js"
+  ],
+  "reporter": [
+    "text-lcov",
+    "text",
+    "lcov"
+  ],
+  "report-dir": "./coverage",
+  "temp-dir": "./.nyc_output"
+}

.travis.yml

@@ -1,10 +1,10 @@
-sudo: false
 language: node_js
 node_js:
-  - '4'
-  - '3'
-  - '2'
-  - '1'
-script: "npm run test-cov"
+  - 10
+  - 12
+  - 14
+script: 
+  - npm run ci
 after_script:
-  - "npm i codecov.io && cat ./coverage/coverage.json | ./node_modules/codecov.io/bin/codecov.io.js"
+  - npm i codecov.io 
+  - cat ./coverage/coverage.json | ./node_modules/codecov.io/bin/codecov.io.js

LICENSE

@@ -1,6 +1,6 @@
-This software is licensed under the MIT License.
+(The MIT License)
 
-Copyright (c) koajs and other contributors
+Copyright (c) Koa.js and other contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+THE SOFTWARE.

README.md

@@ -1,11 +1,12 @@
-koa-safe-jsonp
+[koa-safe-jsonp][github-repo]
 =======
 
 [![NPM version][npm-image]][npm-url]
 [![build status][travis-image]][travis-url]
 [![Test coverage][codecov-image]][codecov-url]
 [![David deps][david-image]][david-url]
 
+[github-repo]: https://github.com/koajs/koa-safe-jsonp
 [npm-image]: https://img.shields.io/npm/v/koa-safe-jsonp.svg?style=flat
 [npm-url]: https://npmjs.org/package/koa-safe-jsonp
 [travis-image]: https://img.shields.io/travis/koajs/koa-safe-jsonp.svg?style=flat
@@ -15,28 +16,31 @@ koa-safe-jsonp
 [david-image]: https://img.shields.io/david/koajs/koa-safe-jsonp.svg?style=flat
 [david-url]: https://david-dm.org/koajs/koa-safe-jsonp
 
-Safe jsonp plusins for koa.
+Safe jsonp plugins for koa.
 
 ## Install
 
 ```bash
-$ npm install koa-safe-jsonp
+# npm .. 
+$ npm i koa-safe-jsonp
+# yarn ..
+$ yarn add koa-safe-jsonp
 ```
 
 ## Usage
 
 ```js
-var jsonp = require('koa-safe-jsonp');
-var koa = require('koa');
+const jsonp = require('koa-safe-jsonp');
+const Koa = require('Koa');
 
-var app = koa();
+const app = new Koa();
 jsonp(app, {
   callback: '_callback', // default is 'callback'
   limit: 50, // max callback name string length, default is 512
 });
 
-app.use(function* () {
-  this.jsonp = {foo: "bar"};
+app.use(function (ctx) {
+  ctx.jsonp = {foo: "bar"};
 });
 
 app.listen(1984);
@@ -74,4 +78,4 @@ $ curl 'http://127.0.0.1:1984/foo.json?_callback=fn' -v
 
 ## License
 
-[MIT](./LICENSE)
+[MIT](LICENSE)

examples/koa-v1.js

@@ -0,0 +1,15 @@
+'use strict';
+
+const jsonp = require('..');
+const koa = require('koa');
+
+const app = koa();
+jsonp(app, {
+  callback: '_callback' // default is 'callback'
+});
+
+app.use(function* () {
+  this.jsonp = { foo: 'bar' };
+});
+
+app.listen(1984);

examples/koa-v2.js

@@ -0,0 +1,15 @@
+'use strict';
+
+const jsonp = require('..');
+const Koa = require('koa');
+
+const app = new Koa();
+jsonp(app, {
+  callback: '_callback' // default is 'callback'
+});
+
+app.use(function (ctx) {
+  ctx.jsonp = { foo: 'bar' };
+});
+
+app.listen(1984);

index.js

@@ -1,36 +1,23 @@
-/**!
- * Copyright(c) koajs and other contributors.
- * MIT Licensed
- *
- * Authors:
- *   fengmk2 <[email protected]> (http://fengmk2.com)
- */
-
 'use strict';
 
-/**
- * Module dependencies.
- */
-
-var jsonpBody = require('jsonp-body');
-
-module.exports = jsonp;
+const jsonpBody = require('jsonp-body');
 
-function jsonp(app, options) {
+// eslint-disable-next-line func-names
+module.exports = function jsonp(app, options) {
   options = options || {};
-  var callback = options.callback || 'callback';
+  const callback = options.callback || 'callback';
 
+  // eslint-disable-next-line accessor-pairs
   Object.defineProperty(app.context, 'jsonp', {
-    set: function (obj) {
-      var jsonpFunction = this.query[callback];
-      if (!jsonpFunction) {
-        return this.body = obj;
-      }
+    set(object) {
+      const jsonpFunc = this.query[callback];
+      // eslint-disable-next-line no-return-assign
+      if (!jsonpFunc) return (this.body = object); // eslint-disable-line no-setter-return
 
       this.set('X-Content-Type-Options', 'nosniff');
       this.type = 'js';
-      this.body = jsonpBody(obj, jsonpFunction, options);
+      this.body = jsonpBody(object, jsonpFunc, options);
     },
     configurable: true
   });
-}
+};