javascript create canvas

This article mainly introduces how to use the AngularJS library of JavaScript to create an electronic business card. you need to use the canvas of HTML5. For more information, see Introduction In this example, I reference some JavaScript libraries including AngularJS to implement a very simple business card generator.

When using JavaScript to create DOM nodes, document. createelement, setattribute,Document. createtextnode and Other lengthy node operation methods with browser compatibility issues, although some people propose to use String concatenation beforeUsing. innerhtml = can reduce the cost of creating nodes and provide better performance. However, in my impression, innerhtml cannot meet all the requirements (I for

This article describes how to use native js to create simple dual-color sub-game code in combination with html5. It is used for personal learning and practice. Although it is not well written, I will share it with you, if you have any need, refer. I want to switch to html5 games. This is something to learn and practice. I first realized it in process-oriented mode, and then implemented it in object-oriented mode (pitted )...... Demo address: http://r

operates its attribute1 attribute (the prompt result is displayed after "//-> ).[Javascript] var t1 =NewClassType1(); t1.attribute1+= 3; alert("t1.attribute1= " + t1.attribute1); //->t1.attribute= 6 Create a class using constructor. Use the keyword "this" to create a class attribute or method. Use the new Keyword to obtain the instance.[

today. Overview In JavaScript, an object is a basic data type. It is a hash in the data structure and can be seen as an unordered set of attributes. Everything except the original value is an object. These values can be accessed through the attribute name, and the attribute name can be any string including null characters. Simply put, an object is a set of attributes. An attribute contains a name (key) and a value (value ). You can understand what

Packets surround us. Although search engines and other applications prefer text-based representation of data, it is found that visualization is easier to understand. At the beginning of this year, SitePoint published Aurelio's article "Chart. js Introduction". After in-depth study of Chart. js functions, this article will explain some of the highlights of this introduction. Basics Chart. js is an open-source HTML5-based Chart library that allows you to easily and easily draw beautiful charts. M

Focus I really don't understand why some people are always black JavaScript. I like JavaScript, it's not everything, but it's closest to what we expect to "run anywhere"! See details below. With JavaScript, you can write an app that lets it run in: on your browser (almost all browsers). your phone and tablet (e.g. React Native,cordova

There are several ways to create objects in javascript: (1) Using built-in objects (2) using JSON notation (3) Custom object construction first, use the built-in objects The built-in objects available to JavaScript can be grouped into two categories: 1,javascript Language native objects (language-level objects), such

In the previous article, we introduced how to create a simple JavaScript Object. The biggest problem with a simple js object is that there is no class constraint and it cannot be reused. There is no such convention, this operation may cause problems. So people borrowed a factory pattern from the design pattern to create JavaS