Range in Javascript/jQuery?

Question

Possible Duplicate:
Does JavaScript have a range() equivalent?

Is there a way to declare a range in Javascript/jQuery like we do in Python?

Something like this:

x = range(1,10)

x = [1,2,3,4,5,6,7,8,9]

Thanks.

For fun try: `function r(start,end){ start = start || 1; return end >= start ? r(start,end-1).concat(end) : []; }` — KooiInc, Aug 04 '12 at 14:00

score 5 · Accepted Answer · answered Aug 04 '12 at 13:44

5

By using some third party libraries like Underscore.js you can achieve the same behaviour as in Python http://underscorejs.org/#range

answered Aug 04 '12 at 13:44

Jaro

score 3 · Answer 2 · answered Aug 04 '12 at 13:43

3

You simply can create an array, loop over the values using a for loop and pushing the values. There isn't anything built into the language.

answered Aug 04 '12 at 13:43

Daniel A. White

score 2 · Answer 3 · answered Aug 04 '12 at 13:46

2

Put this function in your Javascript code, and you should be able to call range() like you do in Python (but it only works for numbers):

function range(start, end)
{
    var array = new Array();
    for(var i = start; i < end; i++)
    {
        array.push(i);
    }
    return array;
}

answered Aug 04 '12 at 13:46

Alex W

Just interesting, how may `[1..10]` be implemented? =) – ted Aug 04 '12 at 13:48
You mean `for (var i = start; i < end; i++)` – David G Aug 04 '12 at 13:48
Definitely useful, but not exactly like range in Python.. http://docs.python.org/library/functions.html#range :-) – thebjorn Aug 04 '12 at 13:48

3 Answers3