extract numeric value from value stored in another variable [duplicate]

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 developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…. Again it depends on the format of your string — Prabhu Murthy
– Prabhu Murthy, Commented Nov 12, 2014 at 9:58
changes to what? does the format remain the same. for e.g submit1 to submit3? — Prabhu Murthy
– Prabhu Murthy, Commented Nov 12, 2014 at 10:05

RahulB · Accepted Answer · 2014-11-12 11:57:50Z

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);

answered Nov 12, 2014 at 10:08

RahulB

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1 Comment

Solution looks dumb and inefficient without regex !! You can go for regex answers if you want!!