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@babel/env with useBuiltIns does not include string iterator on IE9 #6779

Kovensky opened this Issue Nov 9, 2017 · 0 comments


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3 participants

Kovensky commented Nov 9, 2017

Input Code

import '@babel/polyfill'
const [foo, bar] = 'fb'
console.log(foo, bar)

Babel/Babylon Configuration (.babelrc, package.json, cli command)

  "preset": [
    ["@babel/env", {
      "useBuiltIns": "entry",
      "forceAllTransforms": true,
      "shippedProposals": true,
      "targets": {
        "ie": 9,
        "chrome": 49,
        "edge": 13,
        "firefox": 45,
        "safari": 9

Expected Behavior

Should print f b

Current Behavior

Throws TypeError in IE (any version) inside slicedToArray

Your Environment

software version(s)
Babel 7.0.0-beta.31

@yavorsky yavorsky added the i: bug label Nov 24, 2017

@lock lock bot added the outdated label May 2, 2018

@lock lock bot locked as resolved and limited conversation to collaborators May 2, 2018

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