How to increment number using animate with comma using jQuery?

Question

I'm trying to increment a number inside an element on page. But I need the number to include a comma for the thousandth place value. (e.g. 45,000 not 45000)

<script>
// Animate the element's value from x to y:
  $({someValue: 40000}).animate({someValue: 45000}, {
      duration: 3000,
      easing:'swing', // can be anything
      step: function() { // called on every step
          // Update the element's text with rounded-up value:
          $('#el').text(Math.round(this.someValue));
      }
  });
</script>
<div id="el"></div>

How can I increment a number using animate with comma?

Solution 1

Working Demo http://jsfiddle.net/4v2wK/

Feel free to change it more for your need, you can also look at the currency formatter, Hope this will fit your need :)

Code

// Animate the element's value from x to y:
  var $el = $("#el"); //[make sure this is a unique variable name]
  $({someValue: 40000}).animate({someValue: 45000}, {
      duration: 3000,
      easing:'swing', // can be anything
      step: function() { // called on every step
          // Update the element's text with rounded-up value:
          $el.text(commaSeparateNumber(Math.round(this.someValue)));
      }
  });

 function commaSeparateNumber(val){
    while (/(\d+)(\d{3})/.test(val.toString())){
      val = val.toString().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
    }
    return val;
  }

**output*

Solution 2

You should also add a complete function as such:

step:function(){
    //..
},
complete:function(){
    $el.text(commaSeparateNumber(Math.round(this.someValue)));
}

Updated Fiddle: Demo

Comments

[Duc Anh]

Have a look at this stackoverflow.com/questions/7327046/jquery-number-formatting

[Tim Withers]

I would store the number in a data attribute, then show the comma formatted version of the number in the element. When you increment it, just increase the data version and replace the formatted version.

[Chamara Keragala]

This might help you - stackoverflow.com/questions/1990512/…

[Adrian Florescu]

any idea why the number is not the same? I am taking about the circle around the output.

[Tats_innit]

Hiya @AdrianFlorescu umm how do you mean, sorry not sure what are you asking? :) you mean why the output is not say for example: 44,444? like this: jsfiddle.net/hVpqD

[Adrian Florescu]

@Tats_innit exactly, but looks like this is because of the animate steps. I replaced the value on complete with the original value. complete : function(){ where.text(endNr); } jsfiddle.net/5yBt8/10

[SuperNOVA]

You should also add a complete function as such: step:function(){ //.. }, complete:function(){ $el.text(commaSeparateNumber(Math.round(this.someValue))); }

[Bungle]

Why? I'm fairly certain that the step function will be called even on the last animation step. The complete function is used to attach a callback to run after all steps are completed.

[Gntvls]

Sometimes it wasnt showing a good last result, it was random at the end, sometimes 45000, sometimes 4995 and so on, so i've added this function, and now it works just fine. Thanks!