How to replace a given index element in knockoutjs

Question

How do you replace a given index in an observableArray with another element.

I have: ViewModel.Elements()[index]

how can i replace it with anot

Answer 1

observableArrays do have a replace method. This takes in the old item and the new item.

So, you would call it like:

ViewModel.Elements.replace(ViewModel.Elements()[index], yourNewElement);

Internally, this just sets that index to your new item and calls valueHasMutated() to notify any potential subscribers.