Add trim, ltrim, rtrim methods to String object in Javascript_javascript tips

Below we will use this attribute to add three methods to the String object: Trim, LTrim, RTrim (the function is the same as the function of the same name in VbScript)

Copy code 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, "");
}

How about, It’s simple, let’s look at an example of use:

Copy the code The code is as follows: