An array converting question

Question

I have an array below,

var array = {
    "Id":[1,2,3],
    "Name":["one","two","five"],
    "row":[8,9,7]
}

but I want to transform it into

var array2 = 
{"data":
    [
    {"Id":1,"Name":"one","Row:8"},
    {"Id":2,"Name":"two","Row:9"},
    {"Id":3,"Name":"five","Row:7"},
    ]
}

Is this possible?

Aron Rotteveel · Accepted Answer · 2011-04-12 14:14:50Z

2

This should do it:

// make sure the new object is initialized
var array2 = { data: [] };
// Count the number of items in array.Id and start iterating
for (var i=0,t=array.Id.length; i < t; i++) {
   // Note that array.Id = [1,2,3] does not result in corresponding keys
   // array.Id[0] corresponds to value 1!
   array2.data.push({
       Id: array.Id[i],
       Name: array.Name[i],
       Row: array.Row[i]
   });
}

answered Apr 12, 2011 at 14:14

Aron Rotteveel

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Comments

Emmerman · Accepted Answer · 2011-04-12 14:10:39Z

1

var array2 = {data: []};
for (i in array.Id) {
    array2.data.push({
        Id: array.Id[i],
        Name: array.Name[i],
        row: array.row[i]
    });
}

Didn't test it

answered Apr 12, 2011 at 14:10

Emmerman

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1 Comment

Emmerman Over a year ago

No, it's not. array[i] is meaningless here

Headshota · Accepted Answer · 2011-04-12 14:17:09Z

0

it's not an array. it's an object.

var myArr = [1,2,3]; //Array definition


var myObj = {test:"1",test2:"2"}; //Object Definition



var array = [1,[1,2,3]]; // multidimensional array

edited Apr 12, 2011 at 14:17

answered Apr 12, 2011 at 14:11

Headshota

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6 Comments

tobias Over a year ago

but,actually,object is a multidimensional array too?

Headshota Over a year ago

no they are not. I've added multidimensional array example. arrays are different from objects.

Lightness Races in Orbit Over a year ago

Arrays in Javascript are a specific type of object, with auto-incrementing numbers for keys. You're using objects, but not arrays.

Aron Rotteveel Over a year ago

Pretty much everything in JavaScript is technically an object, including arrays. Still, it is pretty clear what the OP wants to do and this answer is not really an answer.

Headshota Over a year ago

yes I know that this isn't an answer, but I wanted the author to know that arrays are not normal objects.

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