JS字符串格式化~欢迎来搂~~

/*
    函数:格式化字符串
    参数：str:字符串模板； data:数据
    调用方式:formatString("api/values/{id}/{name}",{id:101,name:"test"});
             formatString("api/values/{0}/{1}",101,"test");
　　****字符串中需要替换的数据用 {} 括起来，注意花括号里面不能有空格，data建议使用自定义对象，也就是python中的字典
*/
function formatString(str, data) {
    if (!str || data == undefined) {
        return str;
    }
 
    if (typeof data === "object") {
        for (var key in data) {
            if (data.hasOwnProperty(key)) {
                str = str.replace(new RegExp("{" + key + "}", "g"), data[key]);
            }
        }
    } else {
        var args = arguments,
            reg = new RegExp("{([0-" + (args.length - 1) + "])}", "g");
        return str.replace(reg, function(match, index) {
            return args[index - (-1)];
        });
    }
    return str;
}

例子来了~

text_str = "<tr>
            <th>{id}</th>
            <th>{name}</th>
             <th>{author}</th>
             <th>{publish}</th>
            </tr>"
 data = {"id":1,"name":"金瓶","author":"小强","publish":"西北出版社"};         
new_str = formatString(str, data)

## new_str ===> "<tr>
            <th>1</th>
            <th>'金瓶'</th>
            <th>"小强"</th>
             <th>"西北出版社"</th>
            </tr>"