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re: Javascript Array.push is 945x faster than Array.concat 🤯🤔 VIEW POST

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re: What about: cont newArr = [...oldArr, newItem] 🤔
 

Doesn't that still create a copy of the first array - which makes it the same as the concat?

 

I don't know actually. If so, that's really insightful thank you, I'll investigate!!

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