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Case style:     Functional requirements: Click the tab bar to switch the effectClick the + sign to add tab items and content itemsclick × Number, you can delete the current tab item and content itemDouble click the text of tab item or content item to modify the text content Extracting objects: Tab objects The object has the function ...

One: JS data type 1. Detailed JS raw and reference data types 1. Basic TypesBoolean . Boolean values, true and false.null .A special keyword indicating a null value. JavaScript is case sensitive, so null is completely different from null, NULL, or other variables.undefined . Properties when the variable is undefined.Number . Represents a numb ...

Fundamentals Selector | This symbolic band table selects the interpreter, that is, there is a match on the left and right sides of |. let tel = "010-12345678"; //Error Result: Only match either | left or right console.log(tel.match(/010|020\-\d{7,8}/)); //Correct result: so it needs to be used in the atomic group console.log(tel.match(/(01 ...

One partner typesetting Plus, vip freeFunction oneThe template of one partner can be directly inserted into the wechat public platform without opening vipStep 1: Install the chrome plug-inStep 2: Installing the chrome oil monkey extensionStep 3: Install one plus scriptFunction 2Yiban Template Market Templates can be copied directlyThe following ...

An article makes you understand Reflect and Reflect metadata(JavaScript) introduction We often see the use of Reflect in Javascript, but we always don't understand the difference between it and Object. In addition, we don't often use it in work, so we are in a state of ignorance. So make up your mind to use this article to understand it thoro ...

From: Micro reading https://www.weidianyuedu.com/content/4017485010725.html It is appropriate for developers to use JavaScript Design Patterns as templates to solve problems, but it does not mean that these patterns can replace the work of developers. Through design patterns, we can combine the experience of many developers to construct cod ...

We discuss from several dimensions: 1. The essential difference between for loop and forEach. 2. The syntax difference between for loop and forEach. 3. The performance difference between for loop and forEach. Essential difference for loop is a loop method that existed when js was proposed. forEach is a method proposed by ES5 and attach ...

VUE components Basic concepts Component development: according to the idea of encapsulation, encapsulate the reusable UI structure on the page into components, so as to facilitate the development and maintenance of the project Component development in vue: vue is a front-end framework supporting component development, and the suffix of t ...

preface Array is one of the common data types in JavaScript. I'll make a brief record and summary about its operation methods here. This paper mainly includes: Create arrayDetermine whether it is an arrayClass array and array conversionArray de duplication You can choose to eat according to your own needs. Create array Creating an array ...

Built in object There are three kinds of objects in JavaScript: custom object, built-in object and browser objectThe first two objects are the basic content of JS and belong to ECMAScript; The third browser object is unique to JS, which explains the JS APIBuilt in objects refer to the built-in objects of JS language, which are used by develope ...