Number Formatting

@Some1_SomewhereJan 23.2006

I found this code on the web and was wondering if anybody could comment it so that I could understand how to integrate it into my site.

[CODE]function number_format(n) { var arr=new Array(‘0’), z=0; while (n>0) {arr[z]=”+n%1000; n=Math.floor(n/1000); z++;} arr=arr.reverse(); for (var z in arr) if (z>0) //padding zeros while (arr[z].length<3) arr[z]=’0’+arr[z]; return arr.join(); }[/CODE]

Thanks for your time,
Josh

to post a comment

JavaScript

@CrazyMerlinJan 23.2006 — #

[CODE]
 
 function number_format(n) {
 //create an array with 1 element: '0'
 var arr=new Array('0');
 //create a variable 'z' and assign it 0 (zero)
 z=0; 
 //while 'n' is greater than 0 (zero)
 while (n>0){
 //array element[z] = '' (empty string) + the returned value (modulus)
 // of n divided by 1000
 arr[z]=''+n%1000;
 //set n to the nearest integer less than or equal to n/1000
 n=Math.floor(n/1000);
 //increment z
 z++;
 }
 //reverse the array
 arr=arr.reverse();
 //loop through the array using z as a counter
 for (var z in arr)
 //if z is greater than 0 (zero)
 if (z>0) //padding zeros
 //while the length of array element[z] is less than 3
 while (arr[z].length<3)
 //array element[z] = '0' (zero) + the value of array element[z]
 arr[z]='0'+arr[z];
 
  //join the array elements into a string and return that to the caller
  return arr.join();
 }
 
 [/CODE]

@Some1_SomewhereauthorJan 23.2006 — #Thanks for the quick reply. I'm not very familiar with arrays, or how to use them. The commenting will help out a lot.

All I really want to do is have a textbox on this page:

[URL=http://www.dcameraman.com/modules.php?name=Chance_Or_Not]http://www.dcameraman.com/modules.php?name=Chance_Or_Not[/URL]

format the number inside to #,###,###,###,###.

Thanks again,

Josh

@Some1_SomewhereauthorJan 24.2006 — #I was able to figure out what to do and how to implement the code.

Thanks again.

The link above should work to see it.

Josh

@VladdyJan 24.2006 — #Check this out for all your number formating needs:

www.vladdy.net/demos/printf.html

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