Javascript json with key:object

Question

Why do I have an expected token for my json data https://jsfiddle.net/4baLzL4f/

    var myArray = [
        "Key1": {
                "field1": "4",
                "field2": "6.62"
            }   
    ,

        "Key2": {
                "field1": "10",
                "field2": "7.62"
            }
];

Update : What I need is to easily access by key with something like myArray["Key1"]

invalid array is why

charlietfl
– charlietfl

2016-01-31 14:25:27 +00:00
Commented Jan 31, 2016 at 14:25 — charlietfl
– charlietfl, Commented Jan 31, 2016 at 14:25

Nina Scholz · Accepted Answer · 2016-01-31 14:38:17Z

3

You may use an object, not an array:

var myObject = {
    "Key1": {
        "field1": "4",
        "field2": "6.62"
    },
    "Key2": {
        "field1": "10",
        "field2": "7.62"
    }
};

document.write(myObject['Key2']['field2'] + '<br>'); // the same 
document.write(myObject.Key2.field2);                // as this
document.write('<pre>' + JSON.stringify(myObject, 0, 4) + '</pre>');

edited Jan 31, 2016 at 14:38

answered Jan 31, 2016 at 14:24

Nina Scholz

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1 Comment

user310291 Over a year ago

What I need is to easily access by key with something like myArray["Key1"]

HJW · Accepted Answer · 2016-01-31 14:27:41Z

1

If you really want to keep your data structure as a List of objects:

[
  {
    "Key1": {
      "field1": "4",
      "field2": "6.62"
    }
  },
  {
    "Key2": {
      "field1": "10",
      "field2": "7.62"
    }
  }
]

As a Map of objects:

{
  "Key1": {
    "field1": "4",
    "field2": "6.62"
  },
  "Key2": {
    "field1": "10",
    "field2": "7.62"
  }
}

answered Jan 31, 2016 at 14:27

HJW

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2 Comments

user310291 Over a year ago

What I need is to easily access by key with something like myArray["Key1"]

HJW Over a year ago

I suggest you go with a map of objects.

Nishant Mendiratta · Accepted Answer · 2016-01-31 14:42:20Z

1

If you want to use an array of objects make it like the following.

var myArray = [
        {
            "Key1": {
                "field1": "4",
                "field2": "6.62"
            }
        },   
        {
            "Key2": {
                "field1": "10",
                "field2": "7.62"
            }
        }
];

If you want to access it directly with keys use it as an object (Key/Value pair)

var myObj = {
            "Key1": {
                "field1": "4",
                "field2": "6.62"
            },
            "Key2": {
                "field1": "10",
                "field2": "7.62"
            }
        }

You can loop through it using for..in loop:

for (var key in myObj) {
  console.log(myObj[key]);
}

edited Jan 31, 2016 at 14:42

answered Jan 31, 2016 at 14:32

Nishant Mendiratta

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1 Comment

user310291 Over a year ago

What I need is to easily access by key with something like myArray["Key1"]

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