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@extra-array/take-while

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Keeps values from left, while a test passes.

13 lines (12 loc) 246 B
'use strict'; function scanWhile(x, ft) { var i = -1; for (var v of x) if (!ft(v, ++i, x)) return i; return ++i; } function takeWhile(x, ft) { return x.slice(0, scanWhile(x, ft)); } module.exports = takeWhile;