CODEWITHSUNDEEP
javascript
A7bert
A7bert

Reputation: 91

How to use javascript to populate multidimensional array?

Is it possible to use javascript to populate multidimensional arrays. I want to create three dropdownlists to display "name", "nationality" and "occasion". However, I only can complete a two dimensional arrays.

Any good idea? Thanks a lot.

Upvotes: 2

Views: 5911

Answers (3)

user2288580
user2288580

Reputation: 2258

There are three different syntax I know for doing this in JavaScript. These Examples assume a 2 by n size array.

1)

var categories = [[]];
var i = 0;
$.each(data, function(key, value) {
    categories[i] = new Array(value.cat_id, value.category_label);
    i++;
});

2)

var categories = [[]];
var i = 0;
$.each(data, function(key, value) {
    categories[i] = [
        [value.cat_id],
        [value.category_label]
    ];
    i++;
});

3)

var categories = [[]];
$.each(data, function(key, value) {
    categories.push([[value.cat_id],[value.category_label]]);
});

Hope this helps.

Upvotes: 1

marteljn
marteljn

Reputation: 6516

Literal objects:

var obj = {name : "Bob", nationality : "american", occasion : "often"};

You can access an update JS objects using dot notation or array notation:

obj["name"] = "Your Name Here";

obj.name = "Your Name Here";

You can push objects into and array to create a collection. Multi-dimensional arrays are not necessary for the task you are describing.

Upvotes: 1

Tats_innit
Tats_innit

Reputation: 34107

please see this Demo http://jsfiddle.net/LsmYt/ or http://jsfiddle.net/LsmYt/1/

.push = http://www.w3schools.com/jsref/jsref_push.asp

Hope this helps, please lemme knw if I missed anything!

code

 var rambo=[];
for(i=0;i<3;i++){
    rambo.push(['hulk ironman',i]);
    rambo.push(['Human nationality', i]);
    rambo.push(['Yay occassion', i]);
    $("#hulk").html(i);
}
alert(rambo.toSource());

$("#hulk").html(rambo.toSource());

Upvotes: 0

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