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FIX: Add String.includes polyfill for IE11

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This commit is contained in:
David Taylor 2018-10-26 23:10:03 +01:00
parent cd9a41be55
commit 375bba3c31
1 changed files with 17 additions and 0 deletions
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17
app/assets/javascripts/polyfills.js
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@ -94,4 +94,21 @@ if (!Array.prototype.includes) {
}
});
}
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes#Polyfill
if (!String.prototype.includes) {
Object.defineProperty(String.prototype, 'includes', {
value: function(search, start) {
if (typeof start !== 'number') {
start = 0
}
if (start + search.length > this.length) {
return false
} else {
return this.indexOf(search, start) !== -1
}
}
})
}
/* eslint-enable */