CODEWITHSUNDEEP
jqueryarraysformatting
sir_thursday
sir_thursday

Reputation: 5409

Changing Array Formatting

I have a two-dimensional array that is formatted as followed:

[["a",1], ["b",2]]

I want to change its formatting to this:

{"a":1,"b":2}

How can I do this? Sorry if it is an easy/stupid question.

Upvotes: 0

Views: 55

Answers (6)

witrin
witrin

Reputation: 3763

Assuming the key won't appear twice:

var o = {};
[["a",1], ["b",2]].forEach(function(value) {o[value[0]] = value[1];});

Upvotes: 1

Kevin Bowersox
Kevin Bowersox

Reputation: 94429

You can iterate through the multidimensional array, assigning the inner arrays first index as the property and the second as the value.

var arr = [["a",1], ["b",2]];
var obj = {};

for(var i = 0; i < arr.length; i++){
  obj[arr[i][0]] = arr[i][1];
}

Working Example http://jsfiddle.net/4Pmzx/

Upvotes: 2

CD..
CD..

Reputation: 74096

var result = {};
$.each([["a",1], ["b", 2]], function(){result[this[0]] = this[1]})

Upvotes: 2

Dave
Dave

Reputation: 46249

This is pretty easy:

var myList = {};
for( var i in myArray ) {
    myList[myArray[i][0]] = myArray[i][1];
}

Upvotes: 2

smnh
smnh

Reputation: 1745

var arr = [["a",1], ["b",2]], obj = {}, i;

for (i = 0; i < arr.length; i++) {
    obj[arr[i][0]] = arr[i][1];
}

Upvotes: 2

nnnnnn
nnnnnn

Reputation: 150010

I will assume you're sure that the same key won't appear twice (i.e., there won't be two inner arrays with "a"):

var inputArray = [["a",1], ["b",2]],
    outputObject = {},
    i;

for (i = 0; i < inputArray.length; i++)
    outputObject[inputArray[i][0]] = inputArray[i][1];

If that's not enough jQuery for you then I guess you can use $.each() instead of a for loop, etc., but in my opinion a plain for loop is fine for this sort of thing.

Upvotes: 3

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