String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g, ""); };
String.prototype.ltrim = function(){ return this.replace(/^\s+/, ""); };
String.prototype.rtrim = function(){ return this.replace(/\s+$/, ""); };

String.prototype.padLeft = function(str, len, padChar)
{
	if(!padChar) padChar = " ";
	while(str.length < len){ str = padChar+str; }
	return str;
}
String.prototype.padRight = function(str, len, padChar)
{
	if(!padChar) padChar = " ";
	while(str.length < len){ str = str+padChar; }
	return str;
}

//opposite of String.slice; removes a section of a string and returns what's left
String.prototype.prune = function(start, end)
{
	var result = this.slice(0, start);
	if(!isNaN(end)) result += this.slice(end);
	return result;
}

String.prototype.rot13 = function()
{
	var a=97, m=109, n=110, z=122, A=65, M=77, N=78, Z=90;
	var len = this.length, c, str = "";
	for(var i=0; i<len; i++)
	{
		c = this.charCodeAt(i);
		if((a <= c && c <= m) || (A <= c && c <= M)) str += String.fromCharCode(c+13);
		else if((n <= c && c <= z) || (N <= c && c <= Z)) str += String.fromCharCode(c-13);
		else str += this[i];
	}
	return str;
}

String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g, ""); };
String.prototype.ltrim = function(){ return this.replace(/^\s+/, ""); };
String.prototype.rtrim = function(){ return this.replace(/\s+$/, ""); };

String.prototype.padLeft = function(str, len, padding)
{
	if(!padding) padding = " ";
	while(str.length < len){ str = padding+str; }
	return str;
}
String.prototype.padRight = function(str, len, padding)
{
	if(!padding) padding = " ";
	while(str.length < len){ str = str+padding; }
	return str;
}

//opposite of String.slice; removes a section of a string and returns what's left
String.prototype.prune = function(start, end)
{
	var result = this.slice(0, start);
	if(!isNaN(end)) result += this.slice(end);
	return result;
}

String.prototype.rot13 = function()
{
	var a=97, m=109, n=110, z=122, A=65, M=77, N=78, Z=90;
	var len = this.length, c, str = "";
	for(var i=0; i<len; i++)
	{
		c = this.charCodeAt(i);
		if((a <= c && c <= m) || (A <= c && c <= M)) str += String.fromCharCode(c+13);
		else if((n <= c && c <= z) || (N <= c && c <= Z)) str += String.fromCharCode(c-13);
		else str += this[i];
	}
	return str;
}

String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g, ""); };
String.prototype.ltrim = function(){ return this.replace(/^\s+/, ""); };
String.prototype.rtrim = function(){ return this.replace(/\s+$/, ""); };

//opposite of String.slice; removes a section of a string and returns what's left
String.prototype.prune = function(start, end)
{
	var result = this.slice(0, start);
	if(!isNaN(end)) result += this.slice(end);
	return result;
}

String.prototype.rot13 = function()
{
	var a=97, m=109, n=110, z=122, A=65, M=77, N=78, Z=90;
	var len = this.length, c, str = "";
	for(var i=0; i<len; i++)
	{
		c = this.charCodeAt(i);
		if((a <= c && c <= m) || (A <= c && c <= M)) str += String.fromCharCode(c+13);
		else if((n <= c && c <= z) || (N <= c && c <= Z)) str += String.fromCharCode(c-13);
		else str += this[i];
	}
	return str;
}

String.prototype.trim = function(){ return this.replace(/^\s+|\s+$/g, ""); };
String.prototype.ltrim = function(){ return this.replace(/^\s+/, ""); };
String.prototype.rtrim = function(){ return this.replace(/\s+$/, ""); };

//opposite of slice; removes a section of a string and returns what's left
String.prototype.prune = function(start, end)
{
	var result = this.slice(0, start);
	if(!isNaN(end)) result += this.slice(end);
	return result;
}

String.prototype.rot13 = function()
{
	var a=97, m=109, n=110, z=122, A=65, M=77, N=78, Z=90;
	var len = this.length, c, str = "";
	for(var i=0; i<len; i++)
	{
		c = this.charCodeAt(i);
		if((a <= c && c <= m) || (A <= c && c <= M)) str += String.fromCharCode(c+13);
		else if((n <= c && c <= z) || (N <= c && c <= Z)) str += String.fromCharCode(c-13);
		else str += this[i];
	}
	return str;
}

String functions

javascript

JavaScript