js array array splicing push() concat() method efficiency comparison
I encountered this problem when I was working on the entry processing tool. When using concat() splicing array, it takes 9 times push()
let words = []
let needToBeAddedArray = [] // 需要拼接到 words 的数组Using concat() takes 6081ms
words = words.concat(currentWords) // 拼接词组
push() using 0616d1b8163ccd
words.push(...currentWords) // 拼接词组
Summarize
So array.push(...otherArray) is the most efficient
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