Closed
Bug 1360661
Opened 8 years ago
Closed 5 years ago
Document for Array.from provides a polyfill that cannot create array from a Set
Categories
(Developer Documentation Graveyard :: JavaScript, enhancement, P5)
Tracking
(Not tracked)
RESOLVED
WONTFIX
People
(Reporter: fanqi1234, Unassigned)
References
()
Details
:: Developer Documentation Request
Request Type: Correction
Gecko Version: unspecified
Technical Contact:
:: Details
Examples from the same document page suggest that Array.from should be able to create an array from a Set.
However, the document page provides a polyfill that only handles arrayLike with a .length property.
With the provided polyfill, Array.from(anySet) is always empty.
Comparison:
https://jsfiddle.net/fanqi1234/esratk8w/
A polyfill which does work is on github at https://github.com/Financial-Times/polyfill-service/blob/master/polyfills/Array/from/polyfill.js (MIT licence)
found the link above did not actually work in IE11 & forked and altered the pollyfill at https://github.com/mcshaz/polyfill-service/blob/master/polyfills/Array/from/polyfill.js
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Comment 3•5 years ago
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MDN Web Docs' bug reporting has now moved to GitHub. From now on, please file content bugs at https://github.com/mdn/sprints/issues/ and platform bugs at https://github.com/mdn/kuma/issues/.
Status: UNCONFIRMED → RESOLVED
Closed: 5 years ago
Resolution: --- → WONTFIX
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Description
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