Storing values in variable like multidimensional array value using FOR loop

Question

I have multidimentional array functions which are obtaining the values from database sqlite .

var myarray = [];

The array values will be like the below :

myarray[0][0] = "ABC";
myarray[0][1] = "abc";
...
...
...
myarray[3][1] = "GHI";

I need to store array values like this in a variable :

var  md2 = [[myArray[0][0], myArray[0][1]],
    [myArray[1][0], myArray[1][1]],
    [myArray[2][0], myArray[2][1]],
    [myArray[3][0], myArray[3][1]]];

How do i declare the above array values dynamically?

I tried the below :

for(var t =0; t<md2.length; t++){

var g = 0;

md2 = [myarray[t][g],myarray[t][g+1]];

}

This above is not working .

My expected Result is this using for loop:

var  md2 = [[myArray[0][0], myArray[0][1]],
        [myArray[1][0], myArray[1][1]],
        [myArray[2][0], myArray[2][1]],
        [myArray[3][0], myArray[3][1]]];

How can i do that using for loop or other. Suggestions are highly appreciable.

What exactly are you trying to do? Just make copy of first array? — charlietfl
– charlietfl, Commented Feb 3, 2016 at 5:25
@charlietfl . I m just need to store [myArray[0][0] ...... values dynamically using loop conditions. because the myArray length may differ from databale — User Learning
– User Learning, Commented Feb 3, 2016 at 5:31
Your expected output is bit difficult to understand. Can you simply it further? — Arshad Rehmani
– Arshad Rehmani, Commented Feb 3, 2016 at 5:35

Nikolay Ermakov · Accepted Answer · 2016-02-03 05:41:29Z

2

You can use the code below. Check demo - Fiddle

var md2 = [];
for (var t=0; t < myarray.length; t = t+2){
   if (myarray[t] && myarray[t+1]) {
         md2.push( [ myarray[t], myarray[t+1] ] );
   }
}

answered Feb 3, 2016 at 5:41

Nikolay Ermakov

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1 Comment

User Learning Over a year ago

Thanks frd , this not working for me but tq for spending time :) ..... But working in JQfiddle

charlietfl · Accepted Answer · 2016-02-03 06:22:52Z

1

Both of these approaches will give you a copy of myarray which is all you are doing in your code as it is now

var md2 = [].concat(myarray);
// OR
var md2 = myarray.slice();

Both are non destructive and will leave myarray untouched

answered Feb 3, 2016 at 6:22

charlietfl

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Comments

khushboo29 · Accepted Answer · 2016-02-03 05:45:43Z

0

A two-dimensional array is created simply by building on a "normal" array.

 var aa = new Array(3)
 for(var i=0; i<3;i++) {
    aa[i]=new Array(3);
    for(var j=0; j<3;j++) {
       aa[i][j] = j;
    }
  }
  console.log(aa);

 Output: [[0, 1, 2], [0, 1, 2], [0, 1, 2]]

Hope it helps.

answered Feb 3, 2016 at 5:45

khushboo29

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Comments

Pratik Bhalodiya · Accepted Answer · 2016-02-03 06:30:45Z

0

you can use this code for store value from multidimensional to single

var md2 = [];
var cnt = 0;
for(var i=0;i<myArray.length;i++){
md2[i] = myArray[i];
}

answered Feb 3, 2016 at 6:30

Pratik Bhalodiya

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