HTMLEncode method for javascript

HTMLEncode.js

String.prototype.HTMLEncode = function (str) {
	var result = "";
	var str = (arguments.length === 1) ? str : this;
	for (var i = 0; i < str.length; i++) {
		var chrcode = str.charCodeAt(i);
		result += (chrcode > 128) ? "&#" + chrcode + ";" : str.substr(i, 1)
	}
	return result;
}

These 9 lines of javascript code will extend the String object with a new method:

Used as a method on a string

var hasUTF8Chars = "æøå›˘˚≥•±≈";
console.log(hasUTF8Chars.HTMLEncode());
// => æøå›˘˚≥•±≈