On Tue, Oct 7, 2014 at 2:26 PM, Dmitry Soshnikov <[email protected]> wrote: > I see. Actually it doesn't work, your're correct, since > `Array.prototype.map` does preserve the kind (at least in the latest draft).
Hmm, per Rick's earlier email and <https://github.com/rwaldron/tc39-notes/blob/c61f48cea5f2339a1ec65ca89827c8cff170779b/es6/2013-01/jan-30.md#revising-the-array-subclassing-kind-issue>, Array#map (used by a subclass) doesn't preserve the subclass's type; it always returns an Array. > And the `UInt32Array.from(...)` would be consuming a nodeList, not an array. > Will the `nodeList.map(node => parseInt(node.value, 10));` by itself > actually work then? If .map() is inherited from Array, and thus not type-preserving, yes, it'll work. ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
