1. Preface Since I recently received a calendar requirement that needs to support dragging and selecting dates, the experience and effect are not bad, so today I want to share with you the process of packaging this calendar component. 2. Start of research As the saying goes, “sharpening knives and cutting firewood at the same ..
Category : javascript
1. Preface Following the last timemake a casual demonstration of one’s capabilityHaving tasted the benefits of high-priced components, they are now in deep trouble. . . So what will it bring this time? Today, let’s look at what sparks [high-level components] and [New Context API] can spark! 2. New Context API The Context API actually ..
1. Preface On this day, while browsing github (that is, rowing), I suddenly wanted to see the star trend of a certain warehouse, but I searched the star list for half a day and couldn’t find the corresponding function. As a result, Google searched and found a nameStar HistoryGoogle’s plug-in, however, should be charged. . ..
1. Preface After developing Chrome plug-in for the first time last weekgithub-star-trendSince then, I have been wondering what practical problems can be solved by plug-ins? Just as I was searching the browser for inspiration, the numerous tab tabs that I opened gave me a flash of light. Why not make a plug-in to manage tab? ..
The article is read and translated fromThe 30 second guide to publishing a typescript package to npmPart of it has been revised. This article requires you to have a certain knowledge of JS, TS and NPM. it would be better if you had written an ordinary NPM package. if not, there are many tutorials on ..
Preface One of Vue’s most unique characteristics is its non-invasive responsive system. The data model is just an ordinary JavaScript object. When you modify them, the view will be updated. This makes state management very simple and straightforward, but it is equally important to understand how it works so that you can avoid some common ..
Closure, which obtains access rights to variables in a local scope, involves scope stack, execution context, garbage collection mechanism, memory resident and performance issues. Closure cuts off garbage collection events generated by scope stack to realize memory resident of variables. The main application scenarios need cumulative effect, repeated cycle events, correlation of front and back ..
Please fill in the code so that mySort () can display the passed parameters in descending order. function mySort() { var tags = new Array(); for (var i = 0; i < arguments.length; i++) { tags.push(arguments[i]); } tags.sort(function sortNum(a, b) { return a – b; }); return tags; } var result = mySort(50, 11, 16, ..
Deep cloning function clone(Obj) { var buf; if (Obj instanceof Array) { var buf = [];//创建一个空数组 var i = Obj.length; while (i–) { buf[i] = clone(Obj[i]); } return buf; } else if (Obj instanceof Object) { buf = {};//创建一个空对象 for (var k in Obj) { buf[k] = clone(Obj[k]); } return buf; } else { return ..
1, prototype chain inheritance function Parent() { this.name = ‘Mike’ } function Child() { this.age = 12; } Child.prototype = new Parent();//Child继承Parent，通过原型，形成链条 var test = new Child(); console.log(test.age); console.log(test.name);//得到被继承的属性 //继续原型链继承 function Brother() {//brother构造 this.weight = 60; } Brother.prototype = new Child();//继续原型链继承 var brother = new Brother(); console.log(brother.name); console.log(brother.age); 2. Borrow constructors (class inheritance) function Parent(age) ..
H5 series Ten Ways to Optimize Page Loading Speed Essay classification-HTML5 40 Most Important Technical Points in HTML5 Meta collation Details of Web Performance Management HTML5 offline cache -manifest introduction JS series Writing High Performance JavaScript Interesting JavaScript Native Array Function JavaScript Data Access Performance Optimization Scheme Nine Sorting Algorithms Implemented by JavaScript Javascript-Arguments Object ..
Eight Mind Maps for Learning Javascript The pictures here sometimes hang up, so it is better to post the big picture of the site for reading experience.Original:Eight Mind Maps for Learning JavascriptSites:Front-end development document Javascript variable Javascript operator Javascript array Javascript flow statement Javascript string function Javascript function basis Javascript basic DOM operations Javascript regular ..