CODEWITHSUNDEEP
javascriptextjsextjs4.1string-formattingextjs4.2
SharpCoder
SharpCoder

Reputation: 19183

Rounding off a formatted string number using JavaScript or ExtJS

Below, I have a number which I am trying to format using javascript. But it returns NaN.

var v = "153,452.47";
alert(Math.round(v));

You can use following fiddle: Example

How can we format a numeric string having separators?

Upvotes: 0

Views: 1173

Answers (3)

Mulan
Mulan

Reputation: 135287

I think this will work well

var v = "153,452.47";
var float = parseFloat(v.replace(/[^0-9.]/g, ''));
// => 153452.47

If you want to round to integer

var v = "153,452.47";
float.toFixed(0);
// => 153452

Let's make a nice little function!

var roundFormattedNumber = function(n){
  var result = parseFloat(n.replace(/[^0-9.]/g, ''));
  return isNaN(result) ? NaN : result.toFixed(0);
};

This works more nicely than the other solutions provided, because it's a whitelist regexp replace rather than a blacklist one. That means that it will even work for numbers like $ 1,234.56

The other solutions provided will not work for these numbers

roundFormattedNumber("$ 123,456,489.00");
//=> 123456789

roundFormattedNumber("999.99 USD");
//=> 1000

roundFormattedNumber("1 000 €");
//=> 1000

roundFormattedNumber("i like bears");
//=> NaN

Upvotes: 8

Dev
Dev

Reputation: 3932

Try This

var v = "153,452.47";
Math.round(parseFloat(v.replace(",","")));

Upvotes: 0

HMR
HMR

Reputation: 39280

You have to remove the comma.

parseFloat("153,452.57".replace(/,/g,"")).toFixed(0);

if you want 2 decimals:

parseFloat("153,452.57".replace(/,/g,"")).toFixed(2);

Upvotes: 1

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