The introduced here is essentially two methods, by creating a DOM or computed through JavaScript: 1) Through the newly created Image, an Aborted request will be sent after testing, and IE6 does not support it. Change the new Image to document.createElemen
We often use nodeType==1 to determine whether an element is an HMTLElement element. The elements on the page are all nodes, including Element Node, Attribute Node, Text Node, etc. n
A recent project requires us to format the amount in thousandths on the front end (that is, separate every three digits with commas). The code has been modified. The previous version was due to my negligence. I really feel sorry for everyone! It has been
As shown below: Copy the code The code is as follows: ://return array type function findPosition(oElement) {//oElement current element if (typeof (oElement.offsetParent) != 'undefined')
document.addEventListener("event name", function, false); Copy the code as follows: function a function (event){ // method execution} The last parameter in addEventListener determines the response order of the event
I went for an interview the day before yesterday, and a gg asked me about some js knowledge. There was a question about the usage of call and apply. Although I had used the call method 365 days ago, I still couldn't answer it at that time. Today I wil
I have written a lot of articles about HTML5, but I always feel that I have to go through the relevant high-level APIs. Only by understanding the system and thinking about problems from a higher level can we get twice the result with half the effort. 1. A
Preface: For a front-end developer, I always pay attention to some novel functions when browsing the web. For me, who always uses Teambition at work, I always receive Notifications... So today I will study this H5 function... 1 .Instance a Notificationlet
This article introduces the effect of HTML5 Canvas to play cool dazzling big wave schedule. The details are as follows: As shown in the figure above, this article is to achieve the above effect above. Because Alloytouch recently wrote a cool and cool load
In JavaScript and JavaScript tool library for many years, I often have such reveries: when can modern browsers provide some auxiliary methods and class libraries to replace those JavaScript tool libraries, such as jQuery, let us use the browser's nati
As we all know, canvas is a bitmap. In a bitmap, we can draw various things in it, including pictures, lines, etc. So what should we do if we want to add a click event to a certain picture in the canvas. And js can only monitor canvas events. Obviously th
