javascript - 如何对JSON对象进行计数并在计数的基础上取相同的输出

Question

1. 如何对JSON对象进行计数并根据计数取相同的输出

       var obj = 
      [
       {"id":"0","name":"Mike Johnson","group":1},
       {"id":"1","name":"Bob Smith","group":2},
       {"id":"2","name":"Richard Thomas","group":3},
       {"id":"3","name":"Betty White","group":16},
       {"id":"4","name":"Tim Thompson","group":3},
       {"id":"5","name":"Carl Lewis","group":16},
       {"id":"6","name":"Kathy Towers","group":3},
       {"id":"7","name":"Billy Bob","group":1},
       {"id":"8","name":"Sally Bailey","group":1}
       ];
   

   1. 首先我想在计数的基础上进行计数。我想要与输入相同的输出。 对于计数:-

      var count = 0;
      function getCount() {
      
      for (var i = 0; i < obj.length; i++) {
      
              count++;
      
      }
      return count;
      }
      

   输出:-

   function showDetails()   this is not giving the proper output
   { 
   
      for(var j=0; j< count; j++){ 
      obj.push([{j}]);    
      }                   
   alert(obj.name);        
   }                      
   alert(showDetails());   
   And I want an output like:- 
   
        var obj = 
      [
       {"id":"0","name":"Mike Johnson","group":1},
       {"id":"1","name":"Bob Smith","group":2},
       {"id":"2","name":"Richard Thomas","group":3},
       {"id":"3","name":"Betty White","group":16},
       {"id":"4","name":"Tim Thompson","group":3},
       {"id":"5","name":"Carl Lewis","group":16},
       {"id":"6","name":"Kathy Towers","group":3},
       {"id":"7","name":"Billy Bob","group":1},
       {"id":"8","name":"Sally Bailey","group":1}
       ];
   

   有人可以帮我吗？

Answer 1

var data ="January,February,March,April,May,June,July,August,September,October";
var obj = data.split(',').map((item)=>{
     return {
           name:item
           }
});

obj 将是所需的输出