enhancementeshelp wanted
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Description
Does core-js provide a way to polyfill the RegExp feature Lookbehind assertion not available in IE11?
This example uses look-behind and works in Chrome but not in IE11 (as is to be expected):
// replaces image aspect ratio in image URL:
// <...anything...>/893476/default/cute_kittens.jpg
// <...anything...>/893476/image4_3/cute_kittens.jpg
// <...anything...>/893476/square-big/hq/cute_kittens.jpg
// <...anything...>/893476/landscape.small/cute_kittens.jpg
url.replace(/(?<=[/][0-9]+[/])[a-z0-9._-]+(?=([/]hq)?[/][^/]+\.[^./]+$)/i, aspectRatio);
My project is configured to use babel and automatically add core-js polyfills for all used ES6 features:
presets: [
[
"@babel/preset-env",
{
modules: false,
targets: {
browsers: ["last 2 versions", "ie >= 11"]
},
useBuiltIns: 'usage',
corejs: '3',
}
],
"@babel/preset-typescript",
"@babel/preset-react",
]