How to take out array from array and assign it to another array

Question

I have an array of arrays.

I am trying to write code in javascript for following psedocode.

Take the length of array of arrays

take out each array from array and assign it to new array

like as following which is not correct.

    for (var i = 0 ; i < $scope.Permissions.length; i++) 
        var arr + [i] = $scope.Permissions[i];

Any help?

Are you trying to concatenate the individual arrays to a single, "long" array? — Amit
– Amit, Commented Jun 28, 2015 at 7:24
you can't dynamically create variables like that. you can dynamically assign properties to an object (the scope object for example like described in one of the answers below). — Danny Blue
– Danny Blue, Commented Jun 28, 2015 at 13:34

hex13 · Accepted Answer · 2015-06-28 13:22:46Z

1

You can also use array's builtin forEach method:

$scope.Permissions.forEach(function (arr, i) { $scope['arr' + i] = arr });

answered Jun 28, 2015 at 13:22

hex13

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Comments

dfsq · Accepted Answer · 2015-06-28 07:23:33Z

0

In your case it makes sense to create bunch of new arrays as properties of the $scope object:

for (var i = 0 ; i < $scope.Permissions.length; i++) {
    $scope['arr' + i] = $scope.Permissions[i];
}

console.log($scope.arr0, $scope.arr1);

answered Jun 28, 2015 at 7:23

dfsq

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i got this error in console: Cannot read property '0' of undefined

What is $scope.Permissions? Check console.log($scope.Permissions).

@ dfsq. My mistake it works fine as u suggested. thanks