Question

140

How to find the length of a JSON object

rated 0 times [ 147] [ 7] / answers: 1 / hits: 44434 / 8 Years ago, wed, november 16, 2016, 12:00:00

 var legend=[{min:0,

            max:first_color,

            color:#1a9850

  },

  {

      min:first_color,

      max:sec_color,

      color:#fee08b

  },

  {

      min:sec_color,

      max:thrd_color,

      color:#ff3300

  },

  {

      min:thrd_color,

      max:frth_color,

      color:#d73027

      Abc:gsfg

  }



  ];

I'd like to find out each object's property count. E.g. the first 3 objects have 3 properties and 4th one has 4 props, etc.

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zariahdiamondz

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answered 8 Years ago sheylap · Accepted Answer

Iterate over the array and get object property names count.

var legend = [{

  min: 0,

  max: 'first_color',

  color: #1a9850

}, {

  min: 'first_color',

  max: 'sec_color',

  color: #fee08b

}, {

  min: 'sec_color',

  max: 'thrd_color',

  color: #ff3300

}, {

  min: 'thrd_color',

  max: 'frth_color',

  color: #d73027,

  Abc: gsfg

}];



var res = legend.map(function(v) {

  console.log(Object.keys(v).length);

  return Object.keys(v).length;

});



console.log(res);