How does JavaScript get the page scrollTop

This article will explain in detail how to get the page scrollTop for JavaScript. The editor thinks it is very practical, so I share it with you for reference. I hope you can get something after reading this article.

Get page scrollTopfunction getPageScrollTop () {

Var a = document

Return a.documentElement.scrollTop | | a.body.scrollTop

What is JavaScript JS is the abbreviation of JavaScript, it is a literal scripting language, its interpreter is called JavaScript engine, is a part of the browser, mainly used for web development, can add a variety of dynamic effects to the website, make the page more beautiful.

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