Remove commas from dollar amounts in JavaScript using a split

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Have you ever tried to add up multiple fields with JavaScript, only to find out that the client entered a comma to separate thousands and millions? This causes JavaScript to drop all of the digits after the comma. You can use the split command to extract the commas prior to adding the fields together.

Add the removeComma function to the JavaScript Header section of your form, then add the call to the function, onto the onBlur section. Now, when the client moves from one field to another, all commas will be removed from the field.

function removeComma(num) {
var temp1 = 0;
var xarray = num.split(",");
if ( xarray[2] != null ) {
   temp1 = xarray[0]+xarray[1]
+xarray[2]; return temp1 } 
else if ( xarray[1] != null ) {
          temp1 = xarray[0]
+xarray[1]; return temp1}
       else
{temp1 = xarray[0]; return temp1 }         
}

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I've found this works as well.

function removeComma(num) {
    var temp1 = num;
    for (i=1;i<3;i++) {  
// pick limit high enough to find all possible
commas
    temp1 = temp1.replace(",","");
    }
    return temp1;
}

—Michael N.

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Related information from SearchDomino.com:

• Learning Guide: JavaScript development
• FAQ: JavaScript advice

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