Modifying values in an array

Question

I have an array with string values. I want to add additional text before or after each value in the array. How can I do this?

From what I have seen I am guessing it will be something like:

$.each(array, function() {
   // something here
});

Everything I have tried doesn't seem to be working.

If you look at the documentation for the function you're trying to use, you'll see that the handler conveniently receives both the array index and value of the element under iteration. Always read the documentation when you're not sure about a function that you're trying to use. — Lightness Races in Orbit
– Lightness Races in Orbit, Commented Sep 11, 2011 at 18:18

szajmon · Accepted Answer · 2011-09-11 18:16:21Z

3

I think you can use plain JavaScript, that runs a little bit faster.

for(i=0;i<array.length;i++) {
 array[i] = 'some text ' + array[i] + ' some other text';
}

answered Sep 11, 2011 at 18:16

szajmon

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3 Comments

Yes, I think in this case it's easier not to use jQuery, since jQuery returns the values too (and you're actually only looking for the numeric keys).

Yup. Worked beautifully. I was overcomplicating it. :)

@Tim: Well, not quite. You do use the values!

James Sulak · Accepted Answer · 2011-09-11 18:16:06Z

3

You're on the right track. Try:

$.each(array, function(i, v){
   array[i] = array[i] + 'hello';
});

You could also use map:

var newArray = $.map(array, function(v, i) {
   return v + 'hello';
});

answered Sep 11, 2011 at 18:16

James Sulak

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