How to delete Object from deep javascript array?

Question

I want to delete object from my array posted below but nothing works. If I delete the properties it just goes to undefined. I have a recursive function that returns to me the right object. I wish to delete the second object and his children.

var data = {
        parameters: [
            {
                id: 0,
                name: "First",
                value: "1",
                children: []
            },
            {
                id: 1,
                name: "Second",
                value: "2",
                children: [
                            {
                        id: 2,
                        name: "Third",
                        value: "3",
                        children: []
                    }
                ]
            }
        ],
        index: 3
    }

Are you aware of the `delete` operator in JS? (not to be used on arrays) https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete — tmslnz, Nov 07 '16 at 10:04
@tmslnz OP is already using `delete` operator. That is the why value becomes `undefined` — Rajesh, Nov 07 '16 at 10:05
It may very well be if he's deleting from an array, but there's no mention of actually having tried `delete` in the post. — tmslnz, Nov 07 '16 at 10:08
I tried with delete. I can use delete only on properties. Object is still there... — S Kostrun, Nov 07 '16 at 10:10

score 1 · Answer 1 · answered Nov 07 '16 at 10:02

1

You could use Array#splice.

The splice() method changes the content of an array by removing existing elements and/or adding new elements.

data.parameters.splice(1, 1)
//              index //  \\ length

answered Nov 07 '16 at 10:02

Nina Scholz

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2

I would rather suggest you to mark duplicate. We should not answer obvious duplicate. – Rajesh Nov 07 '16 at 10:06

How to delete Object from deep javascript array?

1 Answers1