Creating an array of objects inside an object that already exists

Question

I can create nested objects in Javascript like this:

var filter = {
    filterColumns: {
        value: "",
        valueText:""
        }
    };

but how can I turn filtercolumns into an array of objects? for example I would like to be able to do this:

filter.filterColumns[26].value = "value"
filter.filterColumns[26].valueText = "Bob"
filter.filterColumns[32].value = "value"
filter.filterColumns[32].valueText = "Ibb"
etc.

Thanks

EDIT: Apologies, I got this completely wrong. My original post confused javascript with C#. I have re-written it to reflect what I am trying to do.

This may provide a better description learn.microsoft.com/en-us/dotnet/csharp/programming-guide/… — Rav
– Rav, Commented Jun 6, 2019 at 8:43
Have you seen real and working examples of C# code like that somewhere? If yes can you point us where and in what context? Or are you just asking if you can write code like that? — Steve
– Steve, Commented Jun 6, 2019 at 8:44
Sorry I'm an idiot, I meant javascript not C#! I will edit the above right away — NickyLarson
– NickyLarson, Commented Jun 6, 2019 at 8:49

MilConDoin · Accepted Answer · 2019-06-06 10:46:01Z

2

Do you mean something like the following?

var filter = {
    filterColumns: [
        {
            value: "1",
            valueText: "Alice"
        },{
            value: "2",
            valueText: "Bob"
        },{
            value: "3",
            valueText: "Charlie"
        }
    ]
};

Now filter.filterColumns[1].valueText would contain the string "Bob";

You can for example add to the list with the following code:

filter.filterColumns.push({value: "4", valueText: "Daniel"});

answered Jun 6, 2019 at 10:46

MilConDoin

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2 Comments

NickyLarson Over a year ago

Yes thank you. But what if I want to add a value straight to 'filter.filterColumns[32].value' without having to add a value to the first 31 elements of the array?

MilConDoin Over a year ago

@NickyLarson If I'm not completely mistaken, you can simply write filter.filterColumns[32] = {value: "32", valueText: "Yoshi"}. The term you may be looking for is "sparse array".

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