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JavaScript: How to Remove All Commas From a Number

The following can be used in JavaScript to remove all commas from a number:

var StartNumber = ‘444,555,666‘;
var ReplacedNumber = StartNumber.replace(/\,/g,‘‘);
document.write(ReplacedNumber);

The preceding example uses the JavaScript replace function and utilizes a regular expression to replace all the commas in a number. In the regular expression, the backslash (\) before the comma is used as an escape character, meaning that the comma should be treated as a literal comma. The ‘g‘ means that the replace should be applied globally. Without this, only the first comma would be removed.

Related articles:
JavaScript replace Function
JavaScript Regular Expression Backslash

Possibly related posts: (automatically generated)

This entry was posted on June 25, 2007 at 1:06 pm and is filed under JavaScript, Regular Expressions, Software, Web, internet, programming . You can follow any responses to this entry through the RSS 2.0 feed You can leave a response, or trackback from your own site.

6 Responses to “JavaScript: How to Remove All Commas From a Number”

  1. JDub Says:
    September 27, 2007 at 7:13 am

    Ahh, finally a comma replace script that works for me! And it’s so simple! I kept trying other replace scripts, and they would all give me errors, but this one works great. Thanks!

    Reply
  2. errol Says:
    June 15, 2008 at 12:44 pm

    thanks !! it worked well (Y)

    Reply
  3. indnajns Says:
    October 21, 2008 at 6:45 pm

    Ditto JDub. This one WORKS! Thank you so much, Joey.

    Reply
  4. bubba Says:
    January 15, 2010 at 11:23 am

    shouldn’t “FormNumber” in the 2nd line actually be StartNumber??

    Reply
  5. Kris Says:
    February 10, 2010 at 11:29 pm

    Worked great, thanks!

    Reply

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