JavaScript removes leading and trailing spaces from the string, and javascript strings

JavaScript removes leading and trailing spaces from the string, and javascript strings

Compile the JavaScript function trim () to remove spaces before and after the String. In this function, use the replace () method of the String object to remove spaces at the beginning and end of the String. The key code for the trim () function is as follows:

<Script type = "text/javascript"> function trim () {var str = document. getElementById ("str"); var strValue = str. value; if (strValue = "") {alert ("Enter the original string"); str. focus (); return;} else {var objExp =/(^ \ s *) | (\ s * $)/g; strValue = strValue. replace (objExp, "");} str. value = strValue ;}</script>