Enumerability

Axel Rauschmayer axel at rauschma.de
Sat Jan 11 13:28:11 PST 2014


>> * At the moment, only Object.keys and the for-in loop are affected by it.
>> * In ECMAScript 6, Object.assign will also ignore non-enumerable properties.
> 
> Pave that cowpath!


I’m sorry for being difficult, but IMO this is an important point: The current cowpath is for-in style, right? That is, inherited and own non-enumerable properties. We’ll deviate from that anyway. Independently of what enumerability means, I can only think of cases (including Claude Pache’s pro-enumerability example) where I would want to copy *all* own properties.

Axel

-- 
Dr. Axel Rauschmayer
axel at rauschma.de

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