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copyWithin
Subhajit Sahu edited this page Jun 20, 2020
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26 revisions
Copies part of iterable within. 🏃 📼 📦 🌔 📒
Alternatives: copy, copyWithin.
Similar: copy, fill.
iterable.copyWithin(x, j, [i], [I]);
// x: an iterable
// j: write index
// i: read start index (0)
// I: read end index (X)const iterable = require('extra-iterable');
var x = [1, 2, 3, 4, 5];
[...iterable.copyWithin(x, 3)];
// [ 1, 2, 3, 1, 2 ]
[...iterable.copyWithin(x, 3, 1)];
// [ 1, 2, 3, 2, 3 ]
[...iterable.copyWithin(x, 3, 1, 2)];
// [ 1, 2, 3, 2, 5 ]