javascript: multidimensional array manipulation

Question

I have something like this (data should be a global variable):

var data = {
    fields:{
      id: 0,
      ticket: 0,
      description: 0,
    }
}

Now I want to use something like this to change these variables:

function toggleStatus(element) {
data[fields][element] = 1;
}

This doesn't work, of course, but what is the correct way to manipulate data in similar fashion?

Basically, I need to create a multidimensional array that changes it's status based on user input.

tymeJV · Accepted Answer · 2013-09-26 15:14:49Z

2

That should work fine, but you have to enclose fields in quotes:

data['fields'][element] = 1;

Or

data.fields[element] = 1;

answered Sep 26, 2013 at 15:14

tymeJV

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3 Comments

Shadowedged Over a year ago

In addition, you can do: data.fields.element = 1;

tymeJV Over a year ago

@Shadowedged -- No you can't. .element will be interpreted as looking for a property called element. FYI

Shadowedged Over a year ago

Ah, you are right. I misunderstood the question. I was under the impression @WraithLux wanted to add an element attribute to his field object.

Erik Christianson · Accepted Answer · 2013-09-26 15:15:05Z

0

if element is passed in as one of the names of the properties of field, this should work.

Try:

data['fields']['id'] = 1;

Maybe this would work?

answered Sep 26, 2013 at 15:15

Erik Christianson

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Comments

nebulae · Accepted Answer · 2013-09-26 15:23:40Z

0

just a note, if you're dealing with arrays of objects, it would look more like this:

  var data = [{
        fields:[{
          id: 0,
          ticket: 0,
          description: "bar"
         },
         {
          id: 1,
          ticket: 1,
          description: "foo"
         }] 
  }];

then you could access the properties like

data[0].fields[0].id

data[0].fields[1].description = "more foo"

or

data[0].fields[1]['description'] = "more foo"

answered Sep 26, 2013 at 15:23

nebulae

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