Add trim, ltrim, and rtrim method_javascript skills to String objects in Javascript

Using the prototype attribute of each Object in Javascript, we can add our own methods and attributes to the built-in objects in Javascript. In the following example, we use this attribute to add three methods to the String object: Trim, LTrim, and RTrim (same as the function of the same name in VbScript)

The Code is as follows:

String. prototype. Trim = function ()
{
Return this. replace (/(^ \ s *) | (\ s * $)/g ,"");
}
String. prototype. LTrim = function ()
{
Return this. replace (/(^ \ s *)/g ,"");
}
String. prototype. Rtrim = function ()
{
Return this. replace (/(\ s * $)/g ,"");
}

Let's take a look at the example below:

The Code is as follows: