On Wed, May 3, 2017 at 7:35 PM, Jordan Harband <[email protected]> wrote:
> (an index in Array.from wouldn't make sense, because Array.from takes an > iterable *or* an arraylike - and only an arraylike would be guaranteed to > have an index, or even a "list" at all) > And yet, [it provides one](https://tc39.github.io/ecma262/#sec-array.from). It's the index that will be used to set the array entry from the result. It's only the third argument (the source object) that `Array.from` doesn't include. -- T.J. Crowder
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