remove backspace from text in javascript code example

Example 1: javascript remove all whitespaces

var spacesString= "Do I have spaces?"; 
var noSpacesString= myString.replace(/ /g,'');// "DoIhavespaces?"

Example 2: remove space from string javascript

var puzzle1=myTrim($("#puzzleinput").val());
            function myTrim(x) {
              return x.replace(/^\s+|\s+$/gm,'');
            }