Simple jQuery code snippet to replace all occurrences of characters (or strings) within a string. It could be used to find and replace all substrings found inside a string. Don’t forget to leave out the quotes on the first parameter (the g stands for global, you can also use i for an case insensitive search).
//global search in string
str = str.replace(/find/g,”replace”);
//OR global and case insensitive search in string
str = str.replace(/find/gi,”replace”);
str = str.replace(/find/g,”replace”);
//OR global and case insensitive search in string
str = str.replace(/find/gi,”replace”);
global replace with dynamic var
//global replace
var regex = new RegExp('{'+fieldname+'}', "igm");
$itemForm = $itemForm.replace(regex, fieldvalue);
var regex = new RegExp('{'+fieldname+'}', "igm");
$itemForm = $itemForm.replace(regex, fieldvalue);
Also see: jQuery Read Text File Via AJAX.


