Converting an array of string into integer using jquery

Question

I am trying to convert an array of strings into an array of integers in jquery.

Here is my attempt:

var cdata = data.values.split(",");
$.each( cdata, function(i, l){
 l = parseInt(l);
});

• Zirak: I'm sure that with a tiny bit of thought you can do it yourself. Think about it. Think about it really hard.
• griegs: why use jquery in this case when a simple javascript loop would be sufficient? What is the goal in using jQuery?
• aroth: You really should avoid calling parseInt() without specifying a radix.
• nnnnnn: I agree about always specifying a parseInt() radix, but I'd also suggest that parseInt() is the wrong choice except where you specifically want to deal with non-base-10 numbers or where you want to ignore non-digit characters at the end of the source string. Pablo's answer incorporates just one of the better options.

Answer 1

I think that you not need use Jquery for this case. In javascript pure:

var str = "1,2,3";
var ArrayOfInts = str.split(',').map(Number); //Output: [1,2,3]

Answer 2

// Use jQuery
$('.usesJQuery');
// Do what you want to acomplish with a plain old Javascript loop
var cdata = data.values.split(",");
for(var i = 0; i < cdata.length; i++)
 cdata[i] = parseInt(cdata[i], 10);

• RobG: Or just: cdata[i] = +cdata[i];. But the excercise seems rathter pointless since strings can be converted to numbers in the expression that needs them as numbers.
• Pablo Fernandez: +foo is a shorthand for parseInt(foo, 10)
• Paul: Not really, if foo = '10 dollars'; then parseInt() works but + doesn't.
• aroth: Also parseInt() is a bit more clear/readable than a unary +, in my opinion. Conciseness isn't everything.
• The Mask: +foo is a shorthand for new Number

Answer 3

var cdata = data.values.split(",");
$.map( cdata, function(i, l){
 return +l;
});

Without jQuery (using the browsers native map method):

"1,2,3,4,5,6".split(',').map(function(e) {return +e});

• RobG: Array.prototype.map is not widely supported, it should be feature tested first and an alternative provided if not available.
• Pablo Fernandez: There's no point in adding the for solution, @PaulPRO covered it really good. I'm leaving this for the sake of completion only (since it's not mentioned elsewhere)