ember-collection | efficient incremental rendering component for Ember.js | Grid library
kandi X-RAY | ember-collection Summary
kandi X-RAY | ember-collection Summary
An efficient incremental rendering component with support for custom layouts and large lists.
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QUESTION
I am trying to fill the column C = F data as long as the A counter is not restarting. I tried many things but it automatically update the and the F counter +1 in the subsequent cells.
I tried this
=IF(A2<>-1;F2;F2+1)
but it keeps incrementing F cells I dont want it to increment the F cell just the A but I dont know how to achieve this
ANSWER
Answered 2019-May-04 at 12:44I'm not sure I understood your question correctly, but you can lock a cell-reference by using the dollar symbol. E.g.
QUESTION
I have read this question: IEnumerable vs IReadonlyCollection vs ReadonlyCollection for exposing a list member and this question: ReadOnlyCollection or IEnumerable for exposing member collections?. I am concious that these answers were written years ago.
The answer by Jon Skeet suggests that I should be using a IReadOnlyCollection rather than an IEnumerable as I am very cautious to prevent code like this:
...ANSWER
Answered 2018-Apr-16 at 12:35Is this more water tight than an IReadOnlyCollection?
I don't think so. I would say they serve the same purpose in another way.
Are there any risks using this code? Is it less efficient?
Risks? Not that I am aware of. Since the yield return
compiles to an internal state machine, you lose the direct exposure of the list. That is a benefit of your approach, just like with a read-only collection.
Your code does have a performance impact though: getting the count and other relevant properties have a complexity of O(n)
instead of O(1)
. This might hurt your performance.
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Install ember-collection
git clone https://github.com/adopted-ember-addons/ember-collection.git
cd ember-collection
npm install
ember build
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