Question

我正在从后端获取JSON数组中的重复值，我想删除重复值并仅在SAPUI5 ViewSettingsItem中显示唯一值。

请帮助我。

   A  B   C
0  0  0   0
1  1  1   1
2  2  4   8
3  3  9  27

}

XML视图：

{
"d": {
    "results": [{       
        "Status": "Completed",
        "sId": "C1"
    }, 
    {       
        "Status": "Completed",
        "sId": "C1"
    },
    {       
        "Status": "Started",
        "sId": "S1"
    },
    {       
        "Status": "In Process",
        "sId": "P1"
    },{     
        "Status": "Completed",
        "sId": "C1"
    }]
}

Answer 1

您可以使用reduce和Object来跟踪先前添加的sId's

let obj = {"d": {"results": [{"Status": "Completed","sId": "C1"}, {"Status": "Completed","sId": "C1"},{"Status": "Started","sId": "S1"},{"Status": "In Process","sId": "P1"},{"Status": "Completed","sId": "C1"}]}}

let track = {}

let results = obj.d.results.reduce((op,inp)=>{
  if(!track[inp.sId]){
    op.push(inp)
    track[inp.sId] = inp
  }
  return op
},[])

let op = {d:{results:results}}
console.log(op)

Answer 2

您可以使用javascript（无需使用ES6规范）和jQuery实现此功能。

  var obj = {"d": {"results": [{"Status": "Completed","sId": "C1"}, {"Status": "Completed","sId": "C1"},{"Status": "Started","sId": "S1"},{"Status": "In Process","sId": "P1"},{"Status": "Completed","sId": "C1"}]}}
    var uniqueNames = [];
/******************************************************************************/
    //check if el exist in array
    function inArray (array,el) {
      var find  = false;
      $.each(array,function(index,value) {
        if (el.sId === value.sId ) {
          find = true;
          return false
        }
      });
      return find;
    }
    /*************************************************************************/
   // remove duplicate object from the array
    $.each(obj.d.results,function(i, el) {
       if (this.inArray(uniqueNames,el) === false) {
         uniqueNames.push(el)
       }
    }.bind(this)),



    console.log(uniqueNames);

这是一个jsBin代码段：https://jsbin.com/vaxocor/edit?html,js,output

如何删除重复项并在ViewSettingsItem中仅显示唯一值？

2 个答案: