Comparison and Analysis of pop and push examples in js

This article mainly introduces the relevant knowledge of the comparative analysis of pop and push examples in js, the content is detailed and easy to understand, the operation is simple and fast, and it has a certain reference value. I believe you will gain something after reading this article on the comparative analysis of pop and push examples in js. Let's take a look.

There are many functional methods in the js array, and today we compare pop and push to help beginners distinguish.

1. Multiple entries can be added to push, and only one item can be deleted by pop.

2. Arrays pop and push provide stack-like operations, adding or removing from the tail.

3. Pop and push will modify the original array, pop will return the item = = delete = =, push will return the length of the array = = new = =.

Example

/ / error operation: copy the return after push to the original array. Let arr = [1, 2, 3]; arr = arr.push (4); / / correct operation: push changes the original array, push directly on okarr.push (4), this is the end of the article on "Comparative Analysis of pop and push examples in js". Thank you for reading! I believe you all have a certain understanding of the knowledge of "Comparative Analysis of pop and push examples in js". If you want to learn more, you are welcome to follow the industry information channel.