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copy
wolfram77 edited this page Mar 27, 2020
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25 revisions
Copies part of iterable to another.
iterable.copy(x, y, [j], [i], [I]);
// x: target iterable
// y: source iterable
// j: write index (0)
// i: read start index (0)
// I: read end index (x.length)
const iterable = require('extra-iterable');
var x = [1, 2, 3, 4, 5];
var y = [10, 20, 30];
[...iterable.copy(x, y)];
// [10, 20, 30, 4, 5]
[...iterable.copy(x, y, 1)];
// [1, 10, 20, 30, 5]
[...iterable.copy(x, y, 1, 1)];
// [1, 20, 30, 4, 5]
[...iterable.copy(x, y, 1, 1, 2)];
// [1, 20, 3, 4, 5]