js range of numbers code example

Example 1: create range array javascript

[...Array(10).keys()]
//=> [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Example 2: range javascript

[...Array(5).keys()];
 => [0, 1, 2, 3, 4]

Example 3: 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;
}

Example 4: javascript range of integers

// n is your max range
[...Array(n).keys()]

let n = 10
[...Array(n).keys()] // [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Example 5: range in javascript

See below link