How to use logical AND/OR to make conditional judgment in JavaScript

Editor to share with you how JavaScript uses logical AND/OR to make conditional judgments. I hope you will get something after reading this article. Let's discuss it together.

Use logical AND/OR to make conditional judgment

If metamorphosis statement!

Var foo = 10 & & doSomething (); / / equivalent to if (foo = = 10) doSomething (); foo = = 5 | | doSomething (); / / equivalent to if (foo! = 5) doSomething ()

Logical AND can also be used to set default values for function parameters

Function doSomething (arg1) {Arg1 = arg1 | | 10; / / if arg1 is not set, Arg1 will be set to 10} by default. After reading this article, I believe you have some understanding of "how JavaScript uses logical AND/OR to make conditional judgment". If you want to know more about it, welcome to follow the industry information channel. Thank you for reading!