Javascript RPN (Reverse Polish Notation) with Shunting Yard implementation by Paul Lan – 小方的 Javascript 逆波兰调度场（后缀）算法实现

Several weeks ago, the cool guy  proposed an idea to make  a geeky filter with pure front-end. To do the job, I have to create a implementation of RPN (Reverse Polish Notation) with help from a guy named @Jack. Here it is, RPN with Shunting Yard algorithm.
最近在项目中做了一个高级的前端搜索功能，需要支持逻辑搜索算法。于是在一位叫Jack的哥们的推荐下，使用了逆波兰（后缀）的调度场算法。