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The learning resources for this article come from "Graphics, Animation and Game Development of HTML5 Canvas Core Technologies" Try not to use setInterval and setTimeout to animate, but rather use the requestAnimationFrame() method to let the browser decide the frame rate on its own. Because browsers differ in the implementation of ...

The learning resources for this article come from "Graphics, Animation and Game Development of HTML5 Canvas Core Technologies" Try not to use setInterval and setTimeout to animate, but rather use the requestAnimationFrame() method to let the browser decide the frame rate on its own. Because browsers differ in the implementation of ...

Blazor supports progressive application development, or PWA. Using PWA mode can make web application have the experience of native application. What is PWA PWA application refers to those web applications developed by using specified technology and standard pattern, which will give them the characteristics of web application and native appli ...

1, API introduction ResizeObserver This is an API that can monitor the size and position changes of an element. It is a class. It provides an observer, which will be called on each resize event. Currently, chrome, safari and fireFox(pc) are basically supported. 2, General usage const resizeOb= n ...

Use of ECharts plug-in Introduction to ECharts ECharts, a pure Javascript chart library, can run smoothly on PC and mobile devices, compatible with most current browsers (IE8/9/10/11, Chrome, Firefox, Safari, etc.), the bottom layer relies on the lightweight Canvas class library ZRender, providing i ...

Parallel coordinate system (parallel) is a kind of commonly used chart to visualize high-dimensional data. Parallel coordinate system has a good mathematical basis, and its projective geometry interpretation and dual characteristics make it suitable for visual data analysis. Article catalog 1. Drawin ...

Copyright notice: This is the original article of the blogger, following CC 4.0 BY-SA copyright agreement. Please attach the original source link and this notice for reprint. This blog implements the https://disc.gsfc.nasa.gov/ The ozone, formaldehyde and nitrogen dioxide data downloaded from the we ...

This article thanks the following documents or instructions for their reference.Selenium Python Chinese documentSelenium DocumentationWebdriver reference If there is any error, please point out in the comment area. The author will change it immediately. The article is moved from my personal CSDN, so there is no watermark Environmental d ...

video object Compatibility: safari browser does not support webm format Chrome browser supports webm format ie8 and the following do not support video tags. ie9 supports video tags, but mp4 format Firefox supports video in ogv format   Compatibility writing <video controls> <source src="data/demo.ovg"> &l ...

From script house: This article mainly introduces the use of JS to remove the spaces before and after strings or all spaces. Please refer to the following for your friends: The code is as follows: function Trim(str) { return str.replace(/(^\s*)|(\s*$)/g, ""); } Description: If you use jQuery to directly use the $. trim(str) method, str r ...