How to apply masking to numeric field with a trailing character

Question

I have a numeric(15,2) field. I want to apply masking to it with a trailing character.

Let's say

var x = 789.98;

output :

789.98x

How can I do this?

Thanks in Advance

Answer 1

Did you really mean to just add a character?

var x = number + 'x';

If you meant to mask the last one you can do

var x = number.substring(0, number.length - 1) + 'x';