Reversing words in a string

Question

does anybody know how can I sort words in string using javascript, jquery.

For example I have this:

var words = "1 3 2"

Now I want to reverse it to this:

var words = "2 3 1"

Thanks

Solution 1

Assuming you are reversing (I'm sure this'll still help if you're not).

var original = '1 3 2';
var reversed = original.split(' ').reverse().join(' ');

Solution 2

Here's the basic idea, no need to import jQuery:

var words = "1 3 2"

var i=words.length;
i=i-1;

var reversedwords=""; 
for (var x = i; x >=0; x--)
{
    reversedwords +=(words.charAt(x));
}

alert(reversedwords) // "2 3 1"

This would also work in reversing the string "string" to "gnirts"

Comments

[user270158]

im sorry, this is cool, but in my case i need reversing of string

[user270158]

Excellent! Thank you very much

[Christopher Tokar]

If you had the string "132" this solution would not work because there would not be spaces to split on. However if all you are doing is sorting numbers in the format in your question, yes this solution is simpler.

[Andy E]

@ChrisTek: In that case, you could do string.split("").reverse().join("");. You could do that anyway, even for the example string given.