Use json to define functions, in which you can define the implementation methods of multiple functions

As shown below:

<script>
  //普通方法
  function add(a,b){
      return a+b;
  }
  add(3,4);
  //使用json来定义函数,在里面可以定义多个函数
  var method={
          add:function(a,b){
              return a+b;
          },
          add2:function(a,b){
              return a+b;
          },
          add3:function(a,b){
              return a+b;
          },
  };
  var temp = method.add2(31, 4);
  alert(temp);
</script>