Javascript JSon数组动态列填充AngularJs

我有一个这样的物体：

var myObject= [
{"name":'Tom', "city":'Chicago',"GroupCode":'1'}, 
{"name":'Harry', "city":'Wisconsin',"GroupCode":'1'}, 
{"name":'Rob', "city":'Los Angeles',"GroupCode":'2'}, 
{"name":'Peter', "city":'Seattle',"GroupCode":'2'}, 
{"name":'Dave', "city":'New York',"GroupCode":'3'}, 
{"name":'Steve', "city":'Boston',"GroupCode":'3}
];

myObject.forEach(function(ob, index) {
  if (gc != ob.GroupCode) {
    gc = ob.GroupCode;
    keys = Object.keys(ob);
    var a = {};
    //dynamically creating keys in object
    a[keys[0]] = '--'
    a[keys[1]] = '--'
    a[keys[2]] = '--'
    //insert this object
    myObject.splice(index, 0, a);
  }

})

转化为

var myObject= [
    {"name":'Tom', "city":'Chicago',"GroupCode":'1'}, 
    {"name":'Harry', "city":'Wisconsin',"GroupCode":'1'}, 
    {"name":'--', "city":'--',"GroupCode":'--'}, 
    {"name":'Rob', "city":'Los Angeles',"GroupCode":'2'}, 
    {"name":'Peter', "city":'Seattle',"GroupCode":'2'}, 
    {"name":'--', "city":'--',"GroupCode":'--'}, 
    {"name":'Dave', "city":'New York',"GroupCode":'3'}, 
    {"name":'Steve', "city":'Boston',"GroupCode":'3} 
    ]; 

当组代码发生更改时，使用以下代码在其间添加新记录：

var gc = myObject[0].GroupCode;
myObject.forEach(function(ob, index) {
  if (gc != ob.GroupCode) {
    gc = ob.GroupCode;
    //insert this object
    myObject.splice(index, 0, {
      "name": '--',
      "city": '--',
      "GroupCode": '--'
    });
  }
})

如何在此处使键/列成为动态的

myObject.splice(index, 0, {
          "name": '--',
          "city": '--',
          "GroupCode": '--'
        });

---

您可以这样做：

var myObject= [
{"name":'Tom', "city":'Chicago',"GroupCode":'1'}, 
{"name":'Harry', "city":'Wisconsin',"GroupCode":'1'}, 
{"name":'Rob', "city":'Los Angeles',"GroupCode":'2'}, 
{"name":'Peter', "city":'Seattle',"GroupCode":'2'}, 
{"name":'Dave', "city":'New York',"GroupCode":'3'}, 
{"name":'Steve', "city":'Boston',"GroupCode":'3}
];

myObject.forEach(function(ob, index) {
  if (gc != ob.GroupCode) {
    gc = ob.GroupCode;
    keys = Object.keys(ob);
    var a = {};
    //dynamically creating keys in object
    a[keys[0]] = '--'
    a[keys[1]] = '--'
    a[keys[2]] = '--'
    //insert this object
    myObject.splice(index, 0, a);
  }

})

工作代码

或者你也可以这样做，让它更有活力

myObject.forEach(function(ob, index) {
  if (gc != ob.GroupCode) {
    gc = ob.GroupCode;
    keys = Object.keys(ob);
    var a = {};
    //iterate over  keys and make object
    keys.forEach(function(key){
      a[key] = '--'
      a[key] = '--'
      a[key] = '--'
    })
    //insert this object
    myObject.splice(index, 0, a);
  }

})

---

工作代码

谢谢你，Cyril，这帮了我的忙。