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preface Before introducing the methods of detecting data types, let's talk about the data types in JavaScript~ JS data types are mainly divided into two categories: basic data types and reference data types Basic data types: number, string, boolean, null, undefined, symbol (es6) Reference data type: object (array, function, date...) Please cl ...

6. SpringBoot: static resource handling for Web development Research on Web Development 10.1 introduction OK, students, next, let's start to learn about SpringBoot and Web development. From this chapter, it will belong to our actual combat part; In fact, the things of SpringBoot are very simple to use, because the biggest feature of SpringB ...

1, What is inheritance? First, let's understand what prototype chain is: JavaScript stipulates that all objects have their own prototype. On the one hand, any object can act as the prototype of other objects; On the other hand, because the prototype object is also an object, it also has its own prototype. Therefore, a "prototype chain&quo ...

Front end learning - Advanced Css Use the front-end introductory course of Duyi to learn. The learning notes are recorded here below. I hope my front-end learning road is smooth. Development platform: HBulider X. Learning video: an introduction to the front end. Reference content: rookie tutorial. 1, css habits 1.1 function before sele ...

🚀 [TypeScript Introduction Manual] records the concept of Ts with high attendance rate, which is designed to help you understand and be familiar with Ts 🎉 This series will continue to be updated and corrected, focusing on the points of interest to everyone. Welcome to leave messages and exchange, and encourage each other on the way to advanc ...

prefaceThis is one of my series of articles on basic JavaScript, which mainly records type conversion, equality judgment and operator priority in JavaScript. At the end of the article, some common type conversion interview questions are prepared. After reading this article, I believe these questions are so easy for you. The daily blog is record ...

prefacestay A blog with VuePress + Github Pages In, we built a blog using VuePress, but browse the final site: TypeScript4 Chinese document , we will find that the last update time does not appear at the bottom of each article as in the official VuePress document:In this article, let's explore how to achieve the final update time.OfficialReview ...

(1) Function declaration function call Function is to encapsulate (package) multi line function, and element function is to run multi line code encapsulated by function Function declarations and callsObject. alert is a method of the window objectDeclaration of functions and variables in advanceFunction expression (1) Declaration and call of f ...

preface I believe that most friends who do Zhejiang political nail application must experience a pit of "partial success". How to check? It may not be difficult for old drivers, but for novice drivers who apply Zhejiang political nails for the first time, there will be a feeling that they can't start. Because you feel that everything ...

Refactoring Webpack Series 6 - Configuration Files I. Basic Usage The configuration files for webpacks are different. This is because the configuration file for the webpack is a JavaScript file, in which an object for the webpack configuration is exported, and then the webpack is processed according to the properties defined by the configur ...