JavaScript: String._template()

String._template.js

/**
 * Create a string from a template.
 *
 * Returns a new string with all "<%variables%>" replaced with their corresponding
 * properties from the given object argument.
 *
 * Example:
 * <code>
 * var data = {
 *     name: 'Scott',
 *     description: 'Ante fermentum interdum porttitor rhoncus sem velit, aenean mus nulla porta volutpat.'
 * };
 * var str = '<div><b><%name%></b><p><%description%></p><%will be removed%></div>'
 * console.log(str.template(data));
 * </code>
 *
 * @param   {Object} data The object containing replacement data for the template variables.
 * @returns {String}
 * @author  Scott Buchanan <buchanan.sc@gmail.com>
 * @link    http://wafflesnatcha.github.com
 */
String.prototype._template = function (data) {
	var prop, result = this;
	data = data || {};
	for (prop in data) {
		if (data.hasOwnProperty(prop)) {
			result = result.replace('<%' + prop + '%>', data[prop]);
		}
	}
	return result.replace(/<%.+?%>/ig, '');
};