Question

I need to grab first word in string and I need to convert it to integer.
How to do this using jQuery?

example : “223 Lorem Ipsum Dolor”

I need “223” and it must be converted into integer…

Any help would be appreciated.

Answer 1

You can split a string based on any character (like a space), then pass the first index to parseInt

var str = "223 lorem";
var num = parseInt(str.split(' ')[0], 10);

DEMO

Note that parseInt takes a second parameter, which is the radix. If you leave that off, and try to parse a number with a leading zero, like 09, it’ll assume you’re in base 8, and will return 0, since 09 isn’t a valid base-8 value.

---

Or, as John points out, using the unary + operator is a nifty way to convert a string to a number:

var str = "223 lorem";
var num = +str.split(' ')[0];

DEMO