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What is canvas In web pages, we also call the special area for drawing graphics as "canvas". Web designers can draw their own graphic styles in this area. How to use canvas 1. Create canvas Use the canvas tag in HTML5 to create a canvas in a web page. Basic syntax format: <canvas id="Canvas name" width="numerical value" he ...

TypeScript (II) data type, arbitrary value, type inference, joint type, interface (Interfaces, optional attribute?:, arbitrary attribute, read-only attribute) website: https://ts.xcatliu.com/ 1. Original data type There are two types of JavaScript: raw data type( Primitive data types )And Object types. Raw data types include Boolea ...

WeChat official account: brother K crawler, QQ exchange group: 808574309, keep sharing crawler advance, JS/ Android reverse technology dry cargo! brief introduction When analyzing the JavaScript code of some sites, the simple code and functions are usually one by one, for example: function a() {console.log("a")} function b() {consol ...

🌊 Author home page: 🏆 Hai Yong High quality creators in CSDN full stack field 🌊 About the author: 🥇 HDZ core group members 🥈 Ranked among the top 20 in the weekly list of station C 1. Design your console.log Although this is not necessary, do you think if you leave a colored egg message on the console of your personal website, it will ...

Official profile Koa is a new web framework built by the original team behind Express. It is committed to becoming a smaller, more expressive and more robust cornerstone in the field of web application and API development. By using the async function, KOA helps you discard callback functions and effectively enhances error handling. Instead of ...

Principle of VUE data monitoring vue monitors all levels of data in the data How do I detect data in an object? adopt setter Implement monitoring, and in new Vue Pass in the data to be detected (1),Attributes appended to the object, vue Do not respond by default (2),To respond to the added attributes, use the following API: Vue.set ...

Member of class     attribute         Static properties         Non static attribute     method         Static method         Non static method     constr ...

Several ways of inheritance: 1. Borrow constructor 2. Combination inheritance 3. Prototype inheritance 4. Parasitic inheritance 5. Parasitic combinatorial inheritance 1. Borrow constructor // Define SupTyp constructor function SupType() { this.colors = ['red', 'yellow', 'blue'] } function SubType() { // Inherited SuperType SupTyp ...

preface Do you really know about decorators? I believe that developers who have used decorators must love some of its features. Both react, vue and angular can be supported through babel. Of course, there are some encapsulated third-party decorator libraries, which can realize some powerful functions after reference. Let's have a brief look. ...

Broken thoughts: Dear readers: Hello! My name is Changlon - a non professional programmer, a developer dedicated to the front end, a thinker who loves life and sometimes has melancholy. If my article can bring you some harvest, your praise collection will be a great encouragement to me! My email: thinker_changlon@163.com My Github: htt ...