How does JavaScript empty an array

Editor to share with you JavaScript how to empty the array, I believe that most people do not know much, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

The fastest way to empty an array

Some people in the comments section say that there is a problem with this direct modification of length. I have seen the discussion about the method of emptying arrays before, but I think it is not a problem to use it in general. It is simple and does not have to reallocate memory to new arrays.

Const array = [1, 2, 3, 4]; array.length = 0 console.log (array); / / > [] / / netizens pointed out that a better way is to directly assign the empty array let array = [1, 2, 3, 4]; array = []; these are all the contents of the article "how to empty the array by JavaScript". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!