An optimization would be great because in comparison to the existing concat method, rest/spread is significantly slower at the moment (see https://jsperf.com/single-array-composition)

On 23.05.2018 18:34, Ben Fletcher wrote:
Does the `[...oldArr, ...elementsToPushArr]` pattern take care of that for you? I've always assumed it's much less performant than your form would be, but I (naively) suppose the implementation could be optimized like anything else

On Wed, May 23, 2018 at 8:01 AM <es-discuss-requ...@mozilla.org <mailto:es-discuss-requ...@mozilla.org>> wrote:

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       1. Array.prototype.append ? (Jordi Bunster)



    ---------- Forwarded message ----------
    From: Jordi Bunster <jbuns...@microsoft.com
    <mailto:jbuns...@microsoft.com>>
    To: "es-discuss@mozilla.org <mailto:es-discuss@mozilla.org>"
    <es-discuss@mozilla.org <mailto:es-discuss@mozilla.org>>
    Cc:
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    Date: Wed, 23 May 2018 02:45:25 +0000
    Subject: Array.prototype.append ?
    Has anyone ever suggested Array.prototype.append as an
    Array.prototype.push which returns the array itself? It would be
    reduce-friendly, same as Set.prototype.add and Map.prototype.set.

    Someone has to have, right? 😊
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