Small example of regular expression--remove spaces in the middle and on both sides of the string

Remove all spaces from a string using a regular expression

 var str = " gs gdjkf gs gfsd ";str = str.trim(); //trim()Only spaces on both sides of the string can be removedvar getNewStr = function(str) { //Remove blanks in the string through regular expressionsvar reg = /^\s+|\s+|\s+$/g; //matches all whitespace at the beginning, end and in betweenstr = str.replace(reg, '')span>; //Replace all matching spaces with ''return str;}getNewStr(str); //What you get at this time is a string without spaces//gsgdjkfgsgfsd