Merge two multidimensional arrays, but cant duplicate using datetime

Question

I wish to merge two arrays into one, but cant duplicate using datetime, basically cant merge two results from both arrays with the same datetime.

In each array, the datetime is never repeated.
Both arrays have the same structure, with the same exact positions.
Each array have +60 sub arrays.

example:

Array1 = [[a,b,0000-00-00 00:00],[c,d,0000-00-00 00:59],[e,f,0000-00-00 00:10]];
Array2 = [[z,x,0000-00-00 00:00],[h,s,0000-00-00 00:49],[e,f,0000-00-00 00:20]];


Array12 = [[a,b,0000-00-00 00:00],[c,d,0000-00-00 00:59],[e,f,0000-00-00 00:10],[h,s,0000-00-00 00:49],[e,f,0000-00-00 00:20]];

How can i make this work? I tried a lot of functions, but cant get this working.

Thanks.

Duplicate http://stackoverflow.com/questions/1584370/how-to-merge-two-arrays-in-javascript Also, you need `"` or `'` around your data. Fiddle: http://jsfiddle.net/U7f5j/ — verbanicm, Jul 25 '13 at 15:18

Siddhartha Gupta · Accepted Answer · 2013-07-26T03:07:57.977

If I'm correct you are trying to merge the arrays based in timestamps. Try out this fiddle

var Array1 = [
    ['a', 'b', '0000-00-00 00:00'],
    ['c', 'd', '0000-00-00 00:59'],
    ['e', 'f', '0000-00-00 00:10']
];
var Array2 = [
    ['z', 'x', '0000-00-00 00:00'],
    ['h', 's', '0000-00-00 00:49'],
    ['e', 'f', '0000-00-00 00:20']
];

function mergeArrays(arr1, arr2) {
    var merger = {};

    for (var i = 0; i < arr1.length; i++) {
        merger[arr1[i][2]] = [arr1[i][0], arr1[i][1], arr1[i][2]];
    }

    for (var i = 0; i < arr2.length; i++) {
        if (!(arr2[i][2] in merger)) {
            merger[arr2[i][2]] = [arr2[i][0], arr2[i][1], arr2[i][2]];
        }
    }

    var output = [];
    for (var key in merger) {
        output.push(merger[key]);
    }
    return output;
}

var result = mergeArrays(Array1, Array2);
console.log(result);

Thanks, everything is working great even in much bigger arrays! Just a little typo in _if (!(arr2[i][2] in combined)) {_ , replacing **combined** with **merger** fix it. — azost, Jul 25 '13 at 19:34

Merge two multidimensional arrays, but cant duplicate using datetime

1 Answers1