Implement Array.observe

[MaxArt2501]

Based on the spec.

Basically, it's a matter to implement the detection of the splice event inside the dirty checking loop. Array.unobserve should behave just like Object.unobserve.

[tomalec]

👍 Do you have any plan for this?

[MaxArt2501]

In fact, I do.
It's not a problem of detecting "splice" changes - a distance function (such as Levenshtein's) should do the trick - but a matter of implementation strategy. Detecting splices is a computationally hefty operation that should be done only for Array-like objects that are observed for splice changes. All of these tasks and checks have their computational cost.

I'd like to prioritize adding benchmarks (#11) before this one, and hopefully something should move as soon as I go on a break and have a little time for my projects.

[MaxArt2501]

In the meanwhile, I created a separate polyfill for Array.observe.