extract numeric value from value stored in another variable

Question

How can I extract numeric part from value stored in another variable ?

For example:

 var a=some_string ;

Now I want to extract numeric value of a and store it in another variable .

how does your some_string look like. you could probably use parseInt https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt. Again it depends on the format of your string — Prabhu Murthy, Nov 12 '14 at 09:58
changes to what? does the format remain the same. for e.g submit1 to submit3? — Prabhu Murthy, Nov 12 '14 at 10:05

RahulB · Accepted Answer · 2014-11-12T11:57:50.433

1

Example--

var a='kjh56SS';
var b='';
for(var i=0;i<a.length;i++){
    if(!isNaN(a.charAt(i))){
         b=b+a.charAt(i);
    }
}
alert(b);

edited Nov 12 '14 at 11:57

answered Nov 12 '14 at 10:08

RahulB

1

Solution looks dumb and inefficient without regex !! You can go for regex answers if you want!! – RahulB Nov 12 '14 at 10:11

1 Answers1