Closed
Bug 1294635
Opened 8 years ago
Closed 8 years ago
Polyfills from site are not working properly in IE11
Categories
(Developer Documentation Graveyard :: JavaScript, defect, P5)
Tracking
(Not tracked)
RESOLVED
FIXED
People
(Reporter: llamerr, Unassigned)
Details
:: Developer Documentation Request
Request Type: Correction
Gecko Version: unspecified
Technical Contact:
:: Details
I copied polyfill for Array.find from documentation and now discovered that IE11 iterates over them when I iterate over array with for..in. When I defined polyfill with
Object.defineProperty(Array.prototype, 'find', {
enumerable: false,
it started working properly. I seen this form of polyfill used in multiple places before, but it seems only way it can affect IE11 is through arrays with for..in, so it might apply only to array polyfills. Should I just update documentation polyfills for it manually or is there some way to confirm it/apply it globally?
this is the polyfill I used https://jsfiddle.net/77pm6exf/
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Updated•8 years ago
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Component: General → JavaScript
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Comment 2•8 years ago
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The Polyfill has been updated several times now, uses Object.defineProperty, and aims to closely follow the spec: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find#Polyfill
Status: UNCONFIRMED → RESOLVED
Closed: 8 years ago
Resolution: --- → FIXED
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Description
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