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copyWithin
Subhajit Sahu edited this page May 3, 2023
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27 revisions
Copy part of array within.
Alternatives: copyWithin, copyWithin$.
Similar: copy, copyWithin, moveWithin.
function copyWithin(x, j, i, I)
// x: an array
// j: write index [0]
// i: read begin index [0]
// I: read end index [|x|]const xarray = require('extra-array');
var x = [1, 2, 3, 4, 5];
xarray.copyWithin(x, 3);
// → [ 1, 2, 3, 1, 2 ]
xarray.copyWithin(x, 3, 1);
// → [ 1, 2, 3, 2, 3 ]
xarray.copyWithin(x, 3, 1, 2);
// → [ 1, 2, 3, 2, 5 ]