While delving into the vue source code today, I stumbled upon a method of writing that left me puzzled.
view source
const deduped = [...new Set(pendingPostFlushCbs)]
My initial thought is that it is a shallow copy of the array. But why is there a need to convert it to a Set first? Will this lead to better performance? How should I interpret this?
Utilizing the power of Set, you can effortlessly eliminate duplicates:
pendingPostFlushCbs = [1,2,5,5,6,8,8,]
const deduped = [...new Set(pendingPostFlushCbs)]
const deduped1 = [...pendingPostFlushCbs]
console.log(deduped)
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