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js basic syntax summary Tip: Author: Participant Moral: those who meet will leave, one period and one prayer preface Tip: the following is the basis of JS syntax Sort it out by yourself for centralized review 1, Variable 1 what are variables A variable is a box of things Amount of change, content of change, data of change 2 ...

Front and rear end separation project development preface Front end separation means that the front-end code and back-end code of an application are written separately. Why? What are the problems if the front and rear end separation is not used? In traditional java web development, the front end uses JSP and the back end uses servlet. ...

Objects of JS How objects are created Creating Objects with Literal Quantity var a={};//JS hollow object, imagine a Java hollow Map var student={ //Use (:) to split key and value name:'zhangsan', age:18, doing:function(){ console.log('hello'); } } console.log(a); console.log(student); function someMethods(){ ...

jQuery object and DOM object 1.1 differences between jQuery objects and DOM objects DOM object With native JavaScript Acquired DOM object adopt document.getElementById() The feedback is the element(DOM object) adopt document.getElementsByTagName()What did you get? Pseudo array(aggregate)，Each object in the collection is DOM object jQue ...

TypeScript: basic data type Declare a variable in typescript and specify its type. In future use, the value of the variable can only be this type String type The string in ts can also use back quotation marks. The usage is the same as js let a: string = "aaa"; Number type The number type supports decimal, hexadecimal, binary and octa ...

On December 10, 2021, Adam Wathan, founder of TailwindCSS, announced TailwindCSS v3 0 was officially released, which brought a series of performance improvements, improvement of development workflow and a large number of new features.So this brilliant new star in the field of CSS engineering is in v3 What interesting new features did 0 bring us ...

Level 1: structural design of QR code business card page Relevant knowledge In order to complete this level task, you need to master: 1 Define table settings, 2 Span label. Definition list Definition lists are often used to explain and describe terms or nouns. Unlike unordered and ordered lists, the list items of a definition list do not ...

It has been 2 months since FlyFish, the cloud smart data visual editing platform, was opened to the public! During this period, this application development platform with low threshold and high expansibility not only provided users with a one-stop solution for data visualization, but also won the excellent open source project award of China Clo ...

In previous javascript, there was no concept of modularity. If you want to perform modular operations, you need to introduce third-party classes Library. With the development of technology and the separation of front-end and back-end, the front-end business becomes more and more complex. It was not until ES6 brought modularity javascript suppor ...

Since writing the electron series, many students have asked some questions, mainly for the incremental update of electron. I wrote it before Incremental update (II) However, the Windows mode requires the administrator permission package, which is not very elegant. Moreover, if you want to drag the function, due to the permission problem, the dr ...