Shulou(Shulou.com)06/01 Report--

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

Array truncation

This technique locks the size of the array, which is useful for deleting a fixed number of elements from the array. For example, if you have an array of 10 elements, but you only want the first five elements, you can phase the array by setting array.length = 5. Take a look at this example:

Var array = [1Jing 2Jing 3,4,5,6]; console.log (array.length); / / 6 array.length = 3; console.log (array.length); / / 3 console.log (array); / / [1Jing 2jue 3] these are all the contents of the article "how to achieve Array truncation in 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!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.