How to delete array from a group of array?

Question

I have a group of arrays in $scope.firstorder

Based on some condition e.g. array contains an element Quantity. If Quantity is zero I need to remove this array from the list of arrays.

How can I do that?

Here is my code:

for (index in $scope.firstorder)
{
var quantity = $scope.firstorder[index][0].Quantity;
if (quantity == 0)
{
    //Remove the array from $scope.firstOrder;
}

}

Image of group of arrays

My array structure is like this internally:Array[0]24: Array[1]0: Object CommercialReference: "P7M18012" Description: " User manual: Maintainance guide" ListPrice: 156.37 PurchaseQty: 1 Quantity: 1 Supplier: " AMT " TotalCost: 156.37 — Shweta Singh
– Shweta Singh, Commented Jun 9, 2017 at 9:36
So if this quantity element is zero , I want this complete array to be removed from the list. — Shweta Singh
– Shweta Singh, Commented Jun 9, 2017 at 9:36

Naruto · Accepted Answer · 2017-06-09 12:51:50Z

1

You can use filter combined with Array functions.

$scope.firstorder = $scope.firstorder.filter(outerList=>{ 
      return outerList.filter(innerList=>{ 
          return innerList.Quantity === 0;
        }).length === 0; 
    });

If you want to modify existing array, you can "splice" after finding the index of the arrays which should be deleted.

Thanks.

answered Jun 9, 2017 at 12:51

Naruto

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2 Comments

Shweta Singh Over a year ago

Thanks a lot...it worked. I am getting the expected results.

Naruto Over a year ago

I'm glad that I could help:)

Narendra Solanki · Accepted Answer · 2017-06-09 09:26:10Z

0

Use this it maybe it will help you.

$scope.block = $scope.block.filter(function (arr) {
    return arr.length;
});

answered Jun 9, 2017 at 9:26

Narendra Solanki

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Comments

Federico José Sorenson · Accepted Answer · 2017-06-09 09:28:20Z

0

I think that modifying structures on the time when you iterate them is a bad practice (even though possible).

I would save all the indexes affected and remove them later on (maybe not so effective, but secure).

var indexex = [];
for (index in $scope.firstorder) {
    var quantity = $scope.firstorder[index][0].Quantity;
    if (quantity == 0) {
       a.push(index);
    }
}
for (i in index) {
    $scope.splice(i, 1);
}

(I am not sure the code is perfect, I coded it directly here, check it with an IDE, but I think the idea is there)

Hope it helps!

answered Jun 9, 2017 at 9:28

Federico José Sorenson

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2 Comments

Shweta Singh Over a year ago

Do you mean a.push means indexex.push(index)? and for (i in index) { $scope.splice(i, 1); this is where I need to give $scope.firstorder.splice? }

Federico José Sorenson Over a year ago

I mean just store them and afterwards use the indexes to delete the arrays that you want to delete.

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