模板引擎

render.js

/**
 * 模板引擎
 * 
 * @param {String} template 模板，占位符默认是{}
 * @param {Object} data 数据
 * @param {RegExp} regexp 用正则自定义占位符
 * return {String}
 */
function render(template, data, regexp) {
    if (!(Object.prototype.toString.call(data) === "[object Array]")) {
        data = [data]
    }
    var ret = [];
    for (var i = 0, length = data.length; i < length; i++) {
        ret.push(replaceAction(data[i]));
    }
    return ret.join("");
    function replaceAction(object) {
        return template.replace(regexp || (/\\?\{([^}]+)\}/g), function (match, name) {
            if (match.charAt(0) == '\\')
                return match.slice(1);
            return (object[name] != undefined) ? object[name] : '';
        });
    }
}