Introduction:
Why need to splitting string at every nth position? If you have some number or string which are very long without blank space (e.g. Provident Fund No., Bank Account No., Order No, Transaction No etc…) and you will have limited column space to show entire number in tabular column at that time you will use this simple but most useful split with regex function.

Screen:

Usage Example:
This function will require three parameter as following:

 //str : which are string or number that you want to split
 //limit: it require integer value, it will split text or number at every specified position.
 //replace: it will allows you to separate each text or number with new character (e.g. \n, <br/>).
 function SplitText(str, limit, replace) {
 //Create dynamic regex for splitting string
 var reg = new RegExp("(.{1," + limit + "})", "g");
 //Splitting string using regex
 var text = String(str).split(reg);
 //Filtering empty or null items from array
 //Note: Javascript array filter() method creates a new array with all elements that pass the test implemented by the provided function.
 text = text.filter(function (e) { return e });
 //Join each items with replace with new character (e.g. \n, <br/>)
 text = text.join(replace);
 return text;
 }

Call Function:

var orderNo = SplitText(order_number, 4, '<br/>');

Final Output:

This will very useful in mobile devices which has very limited screen size.