Comparing arrays with ko.utils.compareArrays

[Uğur Tılıkoğlu]

Hi everybody,

I am trying to compare two arrays with ko.utils.compareArrays , but i cannot get any success. Am i missing something?

This fiddle is comparing two arrays with exactly same rows, i expect a result of "retained" rows, but it produces "deleted" and "added" rows.

http://jsfiddle.net/tilikoglu/tTsKk/3/

Thanks

Ugur

[Gunnar Liljas]

The thing is, the rows are not exactly the same, they just have the
same data inside, and compareArrays doesn't care about that.

Just as an example, I made a modification to compareArrays, which
takes a comparison delegate.

http://jsfiddle.net/tTsKk/5/

2013/4/26 Uğur Tılıkoğlu <tili...@gmail.com>:

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[Uğur Tılıkoğlu]

Hi Gunnar,

I will try this method and share my opinions.

Thank you

ugur

[Michael Best]

This is cool. But you probably also want to use the delegate in the move-tracking part, line 75: if (notInSmlItem['value'] === notInBigItem['value']) {

[Gunnar Liljas]

Yes. It was more an example to show why the original compareArrays
doesn't work. However, I think having a comparison delegate option
makes sense in many cases.

/G

2013/4/26 Michael Best <mb...@dasya.com>: