If you need to find the length of a filtered array IMO it makes more sense and is more obvious to just use filter().
On Mon, Jan 7, 2019 at 1:12 PM Засим Александр <[email protected]> wrote: > Hi everyone. This is proposal for Array.prototype.count (or countOf) > method which allow to count specific elements in an array. > > ```js > > const evenNumberCount = [1, 2, 3, 4, 5].count(num => num % 2 === 0); > > ``` > > Instead of > > ```js > > const evenNumberCount = [1, 2, 3, 4, 5].filter(num => num % 2 === > 0).length; > > ``` > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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