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This article mainly introduces JavaScript how to use the arrow function to simplify return, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Make good use of Arrow function to simplify return

ES6's arrow function is a really good thing. When the function is so simple that it only needs to return an expression, the arrow function is the most appropriate. Return doesn't even have to write:

Longhand: / / longhand function getArea (diameter) {return Math.PI * diameter} / / shorthand getArea = diameter = > (Math.PI * diameter;) what JavaScript can do 1. It can make web pages interactive, such as responding to user clicks and providing users with a better experience. two。 You can process forms, verify user input, and provide timely feedback to save users time. 3. The page can be created dynamically according to the user's operation. 4 using JavaScript, you can set up some temporary information that cookie stores on the browser.

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