How to declare a multidimensional array in jquery

Question

I want to store details where the number of columns of array are fixed and number of rows are unknown. I want to assign each column a key by extracting text from the div of a specific page and then assign the value to it. This is my code

var data1=[[]];
var val=0;
$('.education_box.eb1 .inner_box').each(function(){
    $('.education_box.eb1 .inner_box ul li').each(function(){
        var key= $(this).children('strong').text();
        var value= $(this).children('em').text();
        data1[key][val]= value;
    });
    val++;
});
console.log(data1);

Please let me know how to declare the 2D array in line 1 as each time it gives the error: Cannot set property '0' of undefined

See the given answer

Amy
– Amy

2014-12-03 10:05:23 +00:00
Commented Dec 3, 2014 at 10:05 — Amy
– Amy, Commented Dec 3, 2014 at 10:05

Milind Anantwar · Accepted Answer · 2014-12-03 10:02:51Z

1

You can use:

var data1= [];
for (var i=0;i<$('.education_box.eb1 .inner_box ul li').length;i++) {
   data1[i] = [];
}

then use:

 data1[key][val]= value;

edited Dec 3, 2014 at 10:02

answered Dec 3, 2014 at 9:54

Milind Anantwar

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1 Comment

Milind Anantwar Over a year ago

where did you declare data1

Amy · Accepted Answer · 2014-12-03 10:07:12Z

0

Try this:

Declare array using Array class

var data=[];

data[0]=new Array(10,2);;
data[1]=new Array("val1","val2");
data[2]=new Array(true,false);

console.log(data);

edited Dec 3, 2014 at 10:07

answered Dec 3, 2014 at 10:01

Amy

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