将json对象数组转换为二维数组

Question

I have array of JSON objects as follows:

var out = [{
  1: {
    name: 'Name 1',
    id: 'one'

  }
}, {
  2: {
    name: 'Name 2',
    id: 'two'
  }
}];

I am trying to convert this to 2-D array as:

var out = [[1,object],[2,object]];

I tried to use json.encode(out) , any methods or approaches for converting this?

Answer 1

simply try

var output  = out.map(function(val){
  var keyName = parseInt(Object.keys(val)[0],10);
  var value =  val[keyName];
  return [keyName, value];
});

DEMO

 var out = [{ 1: { name: 'Name 1', id: 'one' } }, { 2: { name: 'Name 2', id: 'two' } }]; var output = out.map(function(val) { var keyName = parseInt(Object.keys(val)[0],10); var value = val[keyName]; return [keyName, value]; }); document.body.innerHTML += JSON.stringify(output,0,4); 

Answer 2

You can use map() and Object.keys()

 var out = [{ 1: { name: 'Name 1', id: 'one' } }, { 2: { name: 'Name 2', id: 'two' } }]; var res = out.map(function(v) { var key = Object.keys(v)[0]; return [parseInt(key,10), v[key]]; }) document.write('<pre>' + JSON.stringify(res, null, 3) + '</pre>'); 

Answer 3

A proposal for a more dynamic data structure, without stress to the first key

 var out = [{ 1: { name: 'Name 1', id: 'one' } }, { 2: { name: 'Name 2', id: 'two' } }], result = []; out.forEach(function (a) { Object.keys(a).forEach(function (k) { result.push([+k, a[k]]); }); }); document.write('<pre>' + JSON.stringify(result, 0, 4) + '</pre>'); 

Answer 4

To meet your requirement: ( [[1,object],[2,object]] ) "1" and "2" keys should be numbers :

var result = out.map(function(v){
    var k = Object.keys(v)[0];
    return [parseInt(k),v[k]];
});

console.log(JSON.stringify(result,0,4));

The console.log output:

[
    [
        1,
        {
            "name": "Name 1",
            "id": "one"
        }
    ],
    [
        2,
        {
            "name": "Name 2",
            "id": "two"
        }
    ]
]