A really simple template function

simple-template-func.js

/**
 * A really simple template function.
 * 
 * USAGE:
 * 
 *  1. Ivoke `prepareTemplate(template)` by provide template string as an argument
 *  2. The above invocation returns another function which called by with data argument
 **/
 
function prepareTemplate(template) {
	return function(data) {
		var matches = template.match(/(?!\{\{)[a-zA-Z0-9_-]+(?=\}\})/g);
		var output = template;
	  
		for(var i = 0; i <= matches.length; i++) {
			output = output.replace('{{' + matches[i] + '}}', data[matches[i]]);
		}

		return output;
	};
}

/**
 * Example
 **/
var compile = prepareTemplate("Hello, I am {{name}}. I'm from {{country}}.");
compile({ 'name': 'Jonn', 'country': 'New Zealand' }); // Hello, I'm John. I'm from New Zealand.
compile({ 'name': 'Phalkun', 'country': 'Cambodia'});  // Hello, I'm Phalkun. I'm from Cambodia.