Build the browser data from ES compatibility table (#8)
Use the data from https://github.com/kangax/compat-table to build the browser data. Each Babel plugin is mapped to a list of features in the compatibility table (in `data/pluginFeatures.js`), and the minimum supporting version looked up from the compatibility test data. The script builds the final browser data file in `data/plugins.json`.
This commit is contained in:
Ville Immonen
Henry Zhu
parent
655ae2cada
commit
77a6d686ba
126
experimental/babel-preset-env/data/pluginFeatures.js
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126
experimental/babel-preset-env/data/pluginFeatures.js
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@ -0,0 +1,126 @@
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/* eslint-disable quotes */
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module.exports = {
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// es2015
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"transform-es2015-arrow-functions": {
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features: [
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"arrow functions",
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],
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},
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"transform-es2015-block-scoped-functions": {
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features: [
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"block-level function declaration"
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],
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},
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"transform-es2015-block-scoping": {
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features: [
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"const",
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"let",
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],
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},
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"transform-es2015-classes": {
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features: [
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"class",
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"super",
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],
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},
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"transform-es2015-computed-properties": {
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features: [
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"object literal extensions / computed properties",
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],
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},
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"check-es2015-constants": {
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features: [
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"const",
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],
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},
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"transform-es2015-destructuring": {
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features: [
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"destructuring, assignment",
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"destructuring, declarations",
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"destructuring, parameters",
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],
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},
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"transform-es2015-for-of": {
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features: [
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"for..of loops",
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],
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},
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"transform-es2015-function-name": {
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features: [
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'function "name" property',
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]
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},
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"transform-es2015-literals": {
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features: [
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"Unicode code point escapes",
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],
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},
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"transform-es2015-object-super": {
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features: [
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"super",
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],
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},
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"transform-es2015-parameters": {
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features: [
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"default function parameters",
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"rest parameters",
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],
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},
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"transform-es2015-shorthand-properties": {
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features: [
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"object literal extensions / shorthand properties",
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],
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},
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"transform-es2015-spread": {
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features: [
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"spread (...) operator",
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],
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},
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"transform-es2015-sticky-regex": {
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features: [
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'RegExp "y" and "u" flags / "y" flag, lastIndex',
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'RegExp "y" and "u" flags / "y" flag',
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],
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},
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"transform-es2015-template-literals": {
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features: [
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"template literals",
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],
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},
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"transform-es2015-typeof-symbol": {
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features: [
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"Symbol / typeof support"
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],
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},
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"transform-es2015-unicode-regex": {
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features: [
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'RegExp "y" and "u" flags / "u" flag, case folding',
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'RegExp "y" and "u" flags / "u" flag, Unicode code point escapes',
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'RegExp "y" and "u" flags / "u" flag',
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],
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},
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"transform-regenerator": {
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features: [
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"generators",
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],
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},
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// es2016
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"transform-exponentiation-operator": {
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features: [
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"exponentiation (**) operator",
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],
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},
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// es2017
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"transform-async-to-generator": {
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features: [
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"async functions",
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],
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},
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"syntax-trailing-function-commas": {
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features: [
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"trailing commas in function syntax",
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],
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}
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};
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117
experimental/babel-preset-env/data/plugins.json
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117
experimental/babel-preset-env/data/plugins.json
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@ -0,0 +1,117 @@
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{
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"transform-es2015-arrow-functions": {
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"chrome": 47,
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"edge": 13,
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"firefox": 45,
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"safari": 10
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},
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"transform-es2015-block-scoped-functions": {
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"chrome": 41,
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"firefox": 46,
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"safari": 10
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},
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"transform-es2015-block-scoping": {
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"chrome": 49,
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"firefox": 51,
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"safari": 10
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},
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"transform-es2015-classes": {
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"chrome": 46,
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"edge": 13,
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"firefox": 45,
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"safari": 10
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},
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"transform-es2015-computed-properties": {
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"chrome": 44,
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"edge": 12,
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"firefox": 34,
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"safari": 10
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},
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"check-es2015-constants": {
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"chrome": 49,
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"firefox": 51,
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"safari": 10
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},
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"transform-es2015-destructuring": {
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"chrome": 51,
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"edge": 14,
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"safari": 10
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},
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"transform-es2015-for-of": {
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"chrome": 51,
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"edge": 14,
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"safari": 10
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},
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"transform-es2015-function-name": {
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"chrome": 51,
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"safari": 10
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},
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"transform-es2015-literals": {
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"chrome": 44,
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"edge": 12,
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"safari": 9
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},
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"transform-es2015-object-super": {
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"chrome": 46,
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"edge": 13,
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"firefox": 45,
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"safari": 10
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},
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"transform-es2015-parameters": {
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"chrome": 49,
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"edge": 14,
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"safari": 10
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},
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"transform-es2015-shorthand-properties": {
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"chrome": 43,
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"edge": 12,
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"firefox": 33,
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"safari": 9
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},
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"transform-es2015-spread": {
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"chrome": 46,
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"edge": 13,
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"firefox": 36,
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"safari": 10
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},
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"transform-es2015-sticky-regex": {
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"chrome": 49,
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"edge": 13,
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"firefox": 3,
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"safari": 10
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},
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"transform-es2015-template-literals": {
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"chrome": 41,
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"edge": 13,
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"firefox": 34,
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"safari": 9
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},
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"transform-es2015-typeof-symbol": {
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"chrome": 38,
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"edge": 12,
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"firefox": 36,
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"safari": 9
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},
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"transform-es2015-unicode-regex": {
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"chrome": 50,
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"edge": 13,
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"firefox": 46,
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"safari": 10
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},
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"transform-regenerator": {
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"chrome": 50,
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"edge": 13,
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"safari": 10
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},
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"transform-exponentiation-operator": {
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"chrome": 52,
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"edge": 14
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},
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"transform-async-to-generator": {
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"edge": 14
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},
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"syntax-trailing-function-commas": {
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"edge": 14,
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"safari": 10
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}
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}
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@ -8,10 +8,11 @@
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"repository": "https://github.com/babel/babel-preset-env",
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"main": "lib/index.js",
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"scripts": {
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"build": "babel src -d lib",
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"build": "npm run build-data && babel src -d lib",
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"build-data": "node ./scripts/build-data.js",
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"dev": "babel -w src -d lib",
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"lint": "eslint src test",
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"fix": "eslint src test --fix",
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"lint": "eslint scripts src test",
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"fix": "eslint scripts src test --fix",
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"ci": "npm run lint && npm run test",
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"prepublish": "npm run build",
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"test": "mocha ./test --compilers js:babel-register"
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@ -61,11 +62,14 @@
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"babel-plugin-transform-flow-strip-types": "^6.8.0",
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"babel-preset-es2015": "^6.14.0",
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"babel-register": "^6.14.0",
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"compat-table": "github:kangax/compat-table#gh-pages",
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"eslint": "^3.3.1",
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"eslint-config-babel": "^1.0.1",
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"eslint-plugin-babel": "^3.3.0",
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"eslint-plugin-flow-vars": "^0.5.0",
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"mocha": "^3.0.2"
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"lodash": "^4.15.0",
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"mocha": "^3.0.2",
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"natural-compare": "^1.4.0"
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},
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"babel": {
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"presets": [
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@ -81,7 +85,7 @@
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"transform-flow-strip-types"
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]
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},
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"eslint": {
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"eslintConfig": {
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"extends": "babel",
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"parserOptions": {
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"ecmaVersion": 7,
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77
experimental/babel-preset-env/scripts/build-data.js
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77
experimental/babel-preset-env/scripts/build-data.js
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@ -0,0 +1,77 @@
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const fs = require("fs");
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const path = require("path");
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const flatten = require("lodash/flatten");
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const flattenDeep = require("lodash/flattenDeep");
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const naturalCompare = require("natural-compare");
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const pluginFeatures = require("../data/pluginFeatures");
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const renameTests = (tests, getName) =>
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tests.map((test) => Object.assign({}, test, { name: getName(test.name) }));
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const compatibilityTests = flattenDeep([
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require("compat-table/data-es6"),
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require("compat-table/data-es2016plus"),
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].map((data) =>
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data.tests.map((test) => {
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return test.subtests ?
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[test, renameTests(test.subtests, (name) => test.name + " / " + name)] :
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test;
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})
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));
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const versions = Object.keys(require("compat-table/data-es6").browsers)
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.sort(naturalCompare);
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const environments = [
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"chrome",
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"edge",
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"firefox",
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"safari",
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];
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const getLowestImplementedVersion = ({ features }, env) => {
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let tests = flatten(compatibilityTests
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.filter((test) => features.indexOf(test.name) >= 0)
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.map((test) => {
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return test.subtests ?
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test.subtests.map((subtest) => subtest.res) :
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test.res;
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})
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);
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const envVersions = versions.filter((version) => version.startsWith(env));
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for (let i = 0; i < envVersions.length; i++) {
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const version = envVersions[i];
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tests = tests.filter((test) =>
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test[version] !== true &&
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test[version] !== "strict"
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);
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if (tests.length === 0) {
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const number = parseInt(version.replace(env, ""), 10);
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return isFinite(number) ? number : null;
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}
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}
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return null;
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};
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const data = {};
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for (const pluginName in pluginFeatures) {
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const options = pluginFeatures[pluginName];
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const plugin = {};
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environments.forEach((env) => {
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if (Array.isArray(options.features)) {
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const version = getLowestImplementedVersion(options, env);
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if (version !== null) {
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plugin[env] = version;
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}
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}
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});
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data[pluginName] = plugin;
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}
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fs.writeFileSync(
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path.join(__dirname, "../data/plugins.json"),
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JSON.stringify(data, null, 2) + "\n"
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);
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@ -4,7 +4,7 @@
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// "proto-to-assign",
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// "es5-property-mutators",
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import pluginList from "./plugins.js";
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import pluginList from "../data/plugins.json";
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export const plugins = [
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"es3-member-expression-literals",
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@ -1,131 +0,0 @@
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export default {
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// es2015
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"transform-es2015-arrow-functions": {
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edge: 13,
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firefox: 45,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-block-scoped-functions": {
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edge: 11,
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firefox: 46,
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chrome: 41,
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opera: 28,
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},
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"transform-es2015-block-scoping": {
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edge: 11,
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firefox: 36,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-classes": {
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edge: 13,
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firefox: 45,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-computed-properties": {
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edge: 12,
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firefox: 34,
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chrome: 44,
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opera: 31
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},
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"check-es2015-constants": {
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edge: 11,
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firefox: 36,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-destructuring": {
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edge: 14,
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firefox: Number.NEGATIVE_INFINITY,
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chrome: 52,
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opera: 39,
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},
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"transform-es2015-for-of": {
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edge: Number.NEGATIVE_INFINITY,
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firefox: Number.NEGATIVE_INFINITY,
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chrome: 51,
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opera: 38,
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},
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"transform-es2015-function-name": {
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edge: Number.NEGATIVE_INFINITY,
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firefox: Number.NEGATIVE_INFINITY,
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chrome: 52,
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opera: 39,
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},
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"transform-es2015-literals": {
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edge: 12,
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firefox: 36,
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chrome: 41,
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opera: 28
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},
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"transform-es2015-object-super": {
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edge: 13,
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firefox: 45,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-parameters": {
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edge: 14,
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firefox: Number.NEGATIVE_INFINITY,
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chrome: 49,
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opera: 36,
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},
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"transform-es2015-shorthand-properties": {
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edge: 12,
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firefox: 33,
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chrome: 43,
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opera: 30
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},
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"transform-es2015-spread": {
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edge: 13,
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firefox: 36,
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chrome: 46,
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opera: 33,
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},
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"transform-es2015-sticky-regex": {
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edge: 13,
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firefox: 31,
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chrome: 49,
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opera: 36
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},
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"transform-es2015-template-literals": {
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edge: 13,
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firefox: 34,
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chrome: 41,
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opera: 28,
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},
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"transform-es2015-typeof-symbol": {
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edge: 12,
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firefox: 36,
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chrome: 38,
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opera: 25,
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},
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"transform-es2015-unicode-regex": {
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edge: 12,
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firefox: 46,
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chrome: 51,
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opera: 38,
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},
|
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"transform-regenerator": {
|
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edge: 13,
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firefox: 45,
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chrome: 49,
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opera: 36,
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},
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// es2016
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"transform-exponentiation-operator": {
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edge: 14,
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chrome: 52,
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},
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|
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// es2017
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"transform-async-to-generator": {
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edge: 14,
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},
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"syntax-trailing-function-commas": {
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||||
edge: 14,
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}
|
||||
};
|
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