range javascript
[...Array(5).keys()];
=> [0, 1, 2, 3, 4]function range() as range js
function range(start, end) {
/* generate a range : [start, start+1, ..., end-1, end] */
var len = end - start + 1;
var a = new Array(len);
for (let i = 0; i < len; i++) a[i] = start + i;
return a;
}Copyright © 2021 Codeinu
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