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


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!!


I tried this out in the babel repl, the spread uses concat after es6 code gets transpiled so I can assume its probably the same :O


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