Format Text String to Tweet with JavaScript String.prototype

Format Text String to Tweet with JavaScript String prototype.js

// Enable IE8 support for indexOf
if ( typeof Array.prototype.indexOf === 'undefined' ) {
	Array.prototype.indexOf = function(item) {
		for (var i = 0; i < this.length; i++) {
			if (this[i] === item) {
				return i;
			}
			return -1;
		}
	}
}

// Setup format method for Tweet Mentions
String.prototype.setMentions = function() {
	var re = /@[A-Z0-9_]+/gi;
	return this.replace(re, function(match) {
		return '<a href="https://twitter.com/' + match + '" target="_blank">' + match + '</a>';
	});
};

// Setup format method for Tweet Hashtags
String.prototype.setHash = function() {
	var re = /#[A-Z0-9_]+/gi;
	return this.replace(re, function(match) {
		return '<a href="https://twitter.com/search?q=' + encodeURIComponent(match) + '" target="_blank">' + match + '</a>';
	});
};

// Setup format method for Tweet links
String.prototype.setUrl = function() {
	var re = /(((f|ht){1}(tp|tps):\/\/)[-a-zA-Z0-9@:%_\+\.~#?&\/\/=]+)/gi;
	return this.replace(re, function(match)	{
		return '<a href="' + match + '" target="_blank" class="link">' + match + '</a>';
	});
};

// Collate all methods and format a string to Tweet
String.prototype.toTweet = function() {
	var that;
	self = this.setUrl();
	self = self.setMentions();
	self = self.setHash();
	return self;
};