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Discussion on: Is JavaScript's .shift() Method a Performance Boost?

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lionelrowe profile image
lionel-rowe • Edited

It looks like you could get better perf (at least for long arrays) using Array#concat without the spread operator:

jsperf.com/concat-vs-spreader

Also remember that Array#push returns the pushed item new length of the array, not the array 😉

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miketalbot profile image
Mike Talbot

You're right, should have a , array at the end I guess or a separate line