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98
static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/README.md
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static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/README.md
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# babel-plugin-transform-es2015-arrow-functions
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> Compile ES2015 arrow functions to ES5
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## Example
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**In**
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```javascript
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var a = () => {};
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var a = (b) => b;
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const double = [1,2,3].map((num) => num * 2);
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console.log(double); // [2,4,6]
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var bob = {
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_name: "Bob",
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_friends: ["Sally", "Tom"],
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printFriends() {
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this._friends.forEach(f =>
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console.log(this._name + " knows " + f));
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}
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};
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console.log(bob.printFriends());
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```
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**Out**
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```javascript
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var a = function a() {};
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var a = function a(b) {
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return b;
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};
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var double = [1, 2, 3].map(function (num) {
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return num * 2;
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});
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console.log(double); // [2,4,6]
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var bob = {
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_name: "Bob",
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_friends: ["Sally", "Tom"],
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printFriends: function printFriends() {
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var _this = this;
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this._friends.forEach(function (f) {
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return console.log(_this._name + " knows " + f);
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});
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}
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};
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console.log(bob.printFriends());
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```
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[Try in REPL](http://babeljs.io/repl/#?evaluate=true&lineWrap=true&presets=es2015%2Ces2015-loose&experimental=false&loose=false&spec=false&code=var%20a%20%3D%20()%20%3D%3E%20%7B%7D%3B%0Avar%20a%20%3D%20(b)%20%3D%3E%20b%3B%0A%0Aconst%20double%20%3D%20%5B1%2C2%2C3%5D.map((num)%20%3D%3E%20num%20*%202)%3B%0Aconsole.log(double)%3B%20%2F%2F%20%5B2%2C4%2C6%5D%0A%0Avar%20bob%20%3D%20%7B%0A%20%20_name%3A%20%22Bob%22%2C%0A%20%20_friends%3A%20%5B%22Sally%22%2C%20%22Tom%22%5D%2C%0A%20%20printFriends()%20%7B%0A%20%20%20%20this._friends.forEach(f%20%3D%3E%0A%20%20%20%20%20%20console.log(this._name%20%2B%20%22%20knows%20%22%20%2B%20f))%3B%0A%20%20%7D%0A%7D%3B%0Aconsole.log(bob.printFriends())%3B&playground=true)
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## Installation
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```sh
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npm install --save-dev babel-plugin-transform-es2015-arrow-functions
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```
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## Usage
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### Via `.babelrc` (Recommended)
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**.babelrc**
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```js
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// without options
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{
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"plugins": ["transform-es2015-arrow-functions"]
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}
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// with options
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{
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"plugins": [
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["transform-es2015-arrow-functions", { "spec": true }]
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]
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}
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```
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### Via CLI
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```sh
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babel --plugins transform-es2015-arrow-functions script.js
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```
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### Via Node API
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```javascript
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require("babel-core").transform("code", {
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plugins: ["transform-es2015-arrow-functions"]
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});
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```
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## Options
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* `spec` - This option wraps the generated function in `.bind(this)` and keeps uses of `this` inside the function as-is, instead of using a renamed `this`. It also adds a runtime check to ensure the functions are not instantiated.
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34
static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/lib/index.js
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static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/lib/index.js
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"use strict";
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exports.__esModule = true;
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exports.default = function (_ref) {
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var t = _ref.types;
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return {
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visitor: {
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ArrowFunctionExpression: function ArrowFunctionExpression(path, state) {
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if (state.opts.spec) {
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var node = path.node;
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if (node.shadow) return;
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node.shadow = { this: false };
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node.type = "FunctionExpression";
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var boundThis = t.thisExpression();
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boundThis._forceShadow = path;
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path.ensureBlock();
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path.get("body").unshiftContainer("body", t.expressionStatement(t.callExpression(state.addHelper("newArrowCheck"), [t.thisExpression(), boundThis])));
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path.replaceWith(t.callExpression(t.memberExpression(node, t.identifier("bind")), [t.thisExpression()]));
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} else {
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path.arrowFunctionToShadowed();
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}
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}
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}
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};
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};
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module.exports = exports["default"];
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45
static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/package.json
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static/js/ketcher2/node_modules/babel-plugin-transform-es2015-arrow-functions/package.json
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{
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"_from": "babel-plugin-transform-es2015-arrow-functions@^6.22.0",
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"_id": "babel-plugin-transform-es2015-arrow-functions@6.22.0",
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"_inBundle": false,
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"_integrity": "sha1-RSaSy3EdX3ncf4XkQM5BufJE0iE=",
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"_location": "/babel-plugin-transform-es2015-arrow-functions",
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"_phantomChildren": {},
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"_requested": {
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"type": "range",
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"registry": true,
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"raw": "babel-plugin-transform-es2015-arrow-functions@^6.22.0",
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"name": "babel-plugin-transform-es2015-arrow-functions",
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"escapedName": "babel-plugin-transform-es2015-arrow-functions",
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"rawSpec": "^6.22.0",
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"saveSpec": null,
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"fetchSpec": "^6.22.0"
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},
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"_requiredBy": [
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"/babel-preset-env"
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],
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"_resolved": "https://registry.npmjs.org/babel-plugin-transform-es2015-arrow-functions/-/babel-plugin-transform-es2015-arrow-functions-6.22.0.tgz",
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"_shasum": "452692cb711d5f79dc7f85e440ce41b9f244d221",
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"_spec": "babel-plugin-transform-es2015-arrow-functions@^6.22.0",
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"_where": "/home/manfred/enviPath/ketcher2/ketcher/node_modules/babel-preset-env",
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"bundleDependencies": false,
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"dependencies": {
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"babel-runtime": "^6.22.0"
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},
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"deprecated": false,
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"description": "Compile ES2015 arrow functions to ES5",
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"devDependencies": {
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"babel-helper-plugin-test-runner": "^6.22.0"
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},
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"keywords": [
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"babel-plugin"
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],
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"license": "MIT",
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"main": "lib/index.js",
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"name": "babel-plugin-transform-es2015-arrow-functions",
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"repository": {
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"type": "git",
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"url": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-es2015-arrow-functions"
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},
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"version": "6.22.0"
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}
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