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166
node_modules/babel-preset-minify/README.md
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166
node_modules/babel-preset-minify/README.md
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# babel-preset-minify
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Babel preset for all minify plugins.
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+ [Install](#install)
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+ [Usage](#usage)
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+ [Options](#options)
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## Install
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```sh
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npm install --save-dev babel-preset-minify
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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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```json
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{
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"presets": ["minify"]
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}
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```
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or pass in options -
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```json
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{
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"presets": [["minify", {
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"mangle": {
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"exclude": ["MyCustomError"]
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},
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"unsafe": {
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"typeConstructors": false
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},
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"keepFnName": 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 script.js --presets minify
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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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presets: ["minify"]
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});
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```
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## Options
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Two types of options:
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1. 1-1 mapping with plugin
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2. The same option passed to multiple plugins
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#### 1-1 mapping with plugin
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+ `false` - disable plugin
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+ `true` - enable plugin
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+ `{ ...pluginOpts }` - enable plugin and pass pluginOpts to plugin
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OptionName | Plugin | DefaultValue
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---------- | ------ | ------------
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booleans | [transform-minify-booleans][booleans] | true
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builtIns | [minify-builtins][builtIns] | true
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consecutiveAdds | [transform-inline-consecutive-adds][consecutiveAdds] | true
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deadcode | [minify-dead-code-elimination][deadcode] | true
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evaluate | [minify-constant-folding][evaluate] | true
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flipComparisons | [minify-flip-comparisons][flipComparisons] | true
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guards | [minify-guarded-expressions][guards] | true
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infinity | [minify-infinity][infinity] | true
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mangle | [minify-mangle-names][mangle] | true
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memberExpressions | [transform-member-expression-literals][memberExpressions] | true
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mergeVars | [transform-merge-sibling-variables][mergeVars] | true
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numericLiterals | [minify-numeric-literals][numericLiterals] | true
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propertyLiterals | [transform-property-literals][propertyLiterals] | true
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regexpConstructors | [transform-regexp-constructors][regexpConstructors] | true
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removeConsole | [transform-remove-console][removeConsole] | false
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removeDebugger | [transform-remove-debugger][removeDebugger] | false
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removeUndefined | [transform-remove-undefined][removeUndefined] | true
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replace | [minify-replace][replace] | true
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simplify | [minify-simplify][simplify] | true
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simplifyComparisons | [transform-simplify-comparison-operators][simplifyComparisons] | true
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typeConstructors | [minify-type-constructors][typeConstructors] | true
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undefinedToVoid | [transform-undefined-to-void][undefinedToVoid] | true
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#### The same option passed to multiple plugins
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+ When multiple plugins require the same option, it's easier to declare it in one place. These options are passed on to two or more plugins.
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OptionName | Plugins
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---------- | -------
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keepFnName | Passed to [mangle][mangle] & [deadcode][deadcode]
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keepClassName | Passed to [mangle][mangle] & [deadcode][deadcode]
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tdz | Passed to [builtIns][builtIns], [evaluate][evaluate], [deadcode][deadcode], [removeUndefined][removeUndefined]
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**Examples**
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```json
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{
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"presets": [["minify", {
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"evaluate": false,
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"mangle": true
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}]]
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}
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```
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```json
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{
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"presets": [["minify", {
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"mangle": {
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"exclude": ["ParserError", "NetworkError"]
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}
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}]]
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}
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```
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```json
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{
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"presets": [["minify", {
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"keepFnName": true
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}]]
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}
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// is the same as
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{
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"presets": [["minify", {
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"mangle": {
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"keepFnName": true
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},
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"deadcode": {
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"keepFnName": true
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}
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}]]
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}
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```
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[booleans]: ../../packages/babel-plugin-transform-minify-booleans
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[builtIns]: ../../packages/babel-plugin-minify-builtins
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[consecutiveAdds]: ../../packages/babel-plugin-transform-inline-consecutive-adds
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[deadcode]: ../../packages/babel-plugin-minify-dead-code-elimination
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[evaluate]: ../../packages/babel-plugin-minify-constant-folding
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[flipComparisons]: ../../packages/babel-plugin-minify-flip-comparisons
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[guards]: ../../packages/babel-plugin-minify-guarded-expressions
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[infinity]: ../../packages/babel-plugin-minify-infinity
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[mangle]: ../../packages/babel-plugin-minify-mangle-names
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[memberExpressions]: ../../packages/babel-plugin-transform-member-expression-literals
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[mergeVars]: ../../packages/babel-plugin-transform-merge-sibling-variables
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[numericLiterals]: ../../packages/babel-plugin-minify-numeric-literals
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[propertyLiterals]: ../../packages/babel-plugin-transform-property-literals
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[regexpConstructors]: ../../packages/babel-plugin-transform-regexp-constructors
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[removeConsole]: ../../packages/babel-plugin-transform-remove-console
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[removeDebugger]: ../../packages/babel-plugin-transform-remove-debugger
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[removeUndefined]: ../../packages/babel-plugin-transform-remove-undefined
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[replace]: ../../packages/babel-plugin-minify-replace
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[simplify]: ../../packages/babel-plugin-minify-simplify
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[simplifyComparisons]: ../../packages/babel-plugin-transform-simplify-comparison-operators
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[typeConstructors]: ../../packages/babel-plugin-minify-type-constructors
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[undefinedToVoid]: ../../packages/babel-plugin-transform-undefined-to-void
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110
node_modules/babel-preset-minify/lib/index.js
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110
node_modules/babel-preset-minify/lib/index.js
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"use strict";
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function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
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function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
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function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
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function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
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const isPlainObject = require("lodash.isplainobject"); // the flat plugin map
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// This is to prevent dynamic requires - require('babel-plugin-' + name);
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// as it suffers during bundling of this code with webpack/browserify
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// sorted by option name
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// prettier-ignore
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const PLUGINS = [// [optionname, plugin, default],
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["booleans", require("babel-plugin-transform-minify-booleans"), true], ["builtIns", require("babel-plugin-minify-builtins"), true], ["consecutiveAdds", require("babel-plugin-transform-inline-consecutive-adds"), true], ["deadcode", require("babel-plugin-minify-dead-code-elimination"), true], ["evaluate", require("babel-plugin-minify-constant-folding"), true], ["flipComparisons", require("babel-plugin-minify-flip-comparisons"), true], ["guards", require("babel-plugin-minify-guarded-expressions"), true], ["infinity", require("babel-plugin-minify-infinity"), true], ["mangle", require("babel-plugin-minify-mangle-names"), true], ["memberExpressions", require("babel-plugin-transform-member-expression-literals"), true], ["mergeVars", require("babel-plugin-transform-merge-sibling-variables"), true], ["numericLiterals", require("babel-plugin-minify-numeric-literals"), true], ["propertyLiterals", require("babel-plugin-transform-property-literals"), true], ["regexpConstructors", require("babel-plugin-transform-regexp-constructors"), true], ["removeConsole", require("babel-plugin-transform-remove-console"), false], ["removeDebugger", require("babel-plugin-transform-remove-debugger"), false], ["removeUndefined", require("babel-plugin-transform-remove-undefined"), true], ["replace", require("babel-plugin-minify-replace"), true], ["simplify", require("babel-plugin-minify-simplify"), true], ["simplifyComparisons", require("babel-plugin-transform-simplify-comparison-operators"), true], ["typeConstructors", require("babel-plugin-minify-type-constructors"), true], ["undefinedToVoid", require("babel-plugin-transform-undefined-to-void"), true]];
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const PROXIES = {
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keepFnName: ["mangle", "deadcode"],
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keepClassName: ["mangle", "deadcode"],
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tdz: ["builtIns", "evaluate", "deadcode", "removeUndefined"]
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};
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module.exports = preset;
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function preset(context, _opts = {}) {
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const opts = isPlainObject(_opts) ? _opts : {}; // validate options
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const validOptions = [...PLUGINS.map(p => p[0]), ...Object.keys(PROXIES)];
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for (let name in opts) {
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if (validOptions.indexOf(name) < 0) {
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throw new Error(`Invalid option "${name}"`);
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}
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} // build a plugins map from the plugin table above
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const pluginsMap = PLUGINS.reduce((acc, [name, plugin, defaultValue]) => Object.assign(acc, {
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[name]: {
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plugin,
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options: null,
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enabled: defaultValue
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}
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}), {}); // handle plugins and their options
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for (var _i = 0; _i < PLUGINS.length; _i++) {
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const _PLUGINS$_i = _slicedToArray(PLUGINS[_i], 1),
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name = _PLUGINS$_i[0];
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if (isPlainObject(opts[name])) {
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// for plugins disabled by default
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pluginsMap[name].enabled = true;
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pluginsMap[name].options = opts[name];
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} else if (opts[name] !== void 0) {
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pluginsMap[name].enabled = !!opts[name];
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}
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} // handle proxies
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for (let proxyname in PROXIES) {
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if (opts[proxyname] !== void 0) {
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = PROXIES[proxyname][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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const to = _step.value;
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if (!pluginsMap[to].options) {
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pluginsMap[to].options = {};
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}
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if (!hop(pluginsMap[to].options, proxyname)) {
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pluginsMap[to].options[proxyname] = opts[proxyname];
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}
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return != null) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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}
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} // get the array of plugins
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const plugins = Object.keys(pluginsMap).map(name => pluginsMap[name]).filter(plugin => plugin.enabled).map(plugin => plugin.options ? [plugin.plugin, plugin.options] : plugin.plugin);
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return {
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minified: true,
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comments: false,
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presets: [{
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plugins
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}],
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passPerPreset: true
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};
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}
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function hop(o, key) {
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return Object.prototype.hasOwnProperty.call(o, key);
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}
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74
node_modules/babel-preset-minify/package.json
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74
node_modules/babel-preset-minify/package.json
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{
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"_from": "babel-preset-minify",
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"_id": "babel-preset-minify@0.4.1",
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"_inBundle": false,
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"_integrity": "sha1-QOPtrXQ7sQfdY8fPshxgTczYNnQ=",
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"_location": "/babel-preset-minify",
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"_phantomChildren": {},
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"_requested": {
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"type": "tag",
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"registry": true,
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"raw": "babel-preset-minify",
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"name": "babel-preset-minify",
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"escapedName": "babel-preset-minify",
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"rawSpec": "",
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"saveSpec": null,
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"fetchSpec": "latest"
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},
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"_requiredBy": [
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"#USER",
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"/"
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],
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"_resolved": "https://registry.npmjs.org/babel-preset-minify/-/babel-preset-minify-0.4.1.tgz",
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"_shasum": "40e3edad743bb107dd63c7cfb21c604dccd83674",
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"_spec": "babel-preset-minify",
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"_where": "/home/s2/Documents/Code/minifyfromhtml",
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"author": {
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"name": "amasad"
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},
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"bugs": {
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"url": "https://github.com/babel/minify/issues"
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},
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"bundleDependencies": false,
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"dependencies": {
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"babel-plugin-minify-builtins": "^0.4.1",
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"babel-plugin-minify-constant-folding": "^0.4.1",
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"babel-plugin-minify-dead-code-elimination": "^0.4.1",
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"babel-plugin-minify-flip-comparisons": "^0.4.1",
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"babel-plugin-minify-guarded-expressions": "^0.4.1",
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"babel-plugin-minify-infinity": "^0.4.1",
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"babel-plugin-minify-mangle-names": "^0.4.1",
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"babel-plugin-minify-numeric-literals": "^0.4.1",
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"babel-plugin-minify-replace": "^0.4.1",
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"babel-plugin-minify-simplify": "^0.4.1",
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"babel-plugin-minify-type-constructors": "^0.4.1",
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"babel-plugin-transform-inline-consecutive-adds": "^0.4.1",
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"babel-plugin-transform-member-expression-literals": "^6.9.2",
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"babel-plugin-transform-merge-sibling-variables": "^6.9.2",
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"babel-plugin-transform-minify-booleans": "^6.9.2",
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"babel-plugin-transform-property-literals": "^6.9.2",
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"babel-plugin-transform-regexp-constructors": "^0.4.1",
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"babel-plugin-transform-remove-console": "^6.9.2",
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"babel-plugin-transform-remove-debugger": "^6.9.2",
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"babel-plugin-transform-remove-undefined": "^0.4.1",
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"babel-plugin-transform-simplify-comparison-operators": "^6.9.2",
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"babel-plugin-transform-undefined-to-void": "^6.9.2",
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"lodash.isplainobject": "^4.0.6"
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},
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"deprecated": false,
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"description": "Babel preset for all minify plugins.",
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"homepage": "https://github.com/babel/minify#readme",
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"keywords": [
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"babel-minify",
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"babel-preset",
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"minify"
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],
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"license": "MIT",
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"main": "lib/index.js",
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"name": "babel-preset-minify",
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"repository": {
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"type": "git",
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"url": "https://github.com/babel/minify/tree/master/packages/babel-preset-minify"
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},
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"version": "0.4.1"
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}
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