d3
Version:
A small, free JavaScript library for manipulating documents based on data.
17 lines (16 loc) • 483 B
JavaScript
/**
* @param {number} start
* @param {number=} stop
* @param {number=} step
*/
d3.range = function(start, stop, step) {
if (arguments.length == 1) { stop = start; start = 0; }
if (step == null) step = 1;
if ((stop - start) / step == Infinity) throw new Error("infinite range");
var range = [],
i = -1,
j;
if (step < 0) while ((j = start + step * ++i) > stop) range.push(j);
else while ((j = start + step * ++i) < stop) range.push(j);
return range;
};