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up vote 3 down vote favorite

Can anyone give me a sample/example of JavaScript with a multidimensional array of inputs? Hope you could help because I'm still new to the JavaScript.

Like this:

 var cubes =   [[1, 2, 3],[4, 5, 6],[7, 8, 9]];

output : [1,4,7],
         [1,4,8],
         [1,4,9],
         [1,5,7],
         [1,5,8],
         [1,5,9],
         [1,6,7],
         [1,6,8],
         [1,6,8],
        ......... 
        .........
         [3,6,7],
         [3,6,8],
         [3,6,9]

Thanks

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2  
Do you know how to loop over a single array ? –  phtrivier May 9 '13 at 11:32

2 Answers 2

up vote 3 down vote

This code should work:

var cubes = [[1, 2, 3],[4, 5, 6],[7, 8, 9]];

for(var i=0; i<cubes[0].length; ++i)
for(var j=0; j<cubes[1].length; ++j)
for(var k=0; k<cubes[2].length; ++k) {
    alert([cubes[0][i],cubes[1][j],cubes[2][k]]);
}
share|improve this answer
    
Beat me to it ;) –  Maloric May 9 '13 at 11:51
    
Unfortunately, this solution only works for 3-dimensional arrays. However, I've found a way to loop through arrays with any number of dimensions (which may be more useful): stackoverflow.com/a/15854485/975097 –  Anderson Green Jul 20 '13 at 22:17
up vote 1 down vote

This works for the given array, but means if you have more than three inner arrays, or more array dimensions then you would have to manually edit the javascript.

$(document).ready(function(){
    var cubes =   [[1, 2, 3],[4, 5, 6],[7, 8, 9]];
    var output = "";

    for(var a = 0; a < cubes[0].length; a++)
    for(var b = 0; b < cubes[1].length; b++)
    for(var c = 0; c < cubes[2].length; c++) {
        output = output + [cubes[0][a],cubes[1][b],cubes[2][c]] + ",<br />";
    }

    $('#output').html(output);
});

Working example: http://jsfiddle.net/HtSkd/

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