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takeWhile
Subhajit Sahu edited this page Jun 15, 2020
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15 revisions
Extracts values, while a test passes. 🏃 📼 📦 🌔 📒
Alternatives: take, takeRight, takeWhile, takeWhileRight.
Similar: take, drop.
iterable.takeWhile(x, fn);
// x: an iterable
// fn: test function (v, i, x)const iterable = require('extra-iterable');
var x = [1, 2, 3, 4, 5];
[...iterable.takeWhile(x, v => v < 3)];
// [ 1, 2 ]
[...iterable.takeWhile(x, v => v < 4)];
// [ 1, 2, 3 ]