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Transferred from: Micro reading   https://www.weidianyuedu.com preface This paper lists 36 vue development skills; Subsequent vue 3 After X comes out, it will be updated continuously 1,require.context() 1. Scenario: if the page needs to import multiple components, the original writing method: import titleCom from "@/components/home/t ...

Constructor and prototype object 1. Constructor Constructor: the constructor is mainly used to create an object and assign initial values to the members of the object. function Person(name, age) { this.name = name; this.age = age; } var p1 = new Person('Zhang San', 18); var p2 = new Person('Li Si', 19); console.log(p1.name); // Outp ...

Previous chapter: 3. TS common types for getting started with typescript (2) 3.13 enumeration types The function of enumeration is similar to that of literal type + union type combination. It can also represent a set of explicit optional values. Enumeration: defines a set of named constants. It describes a value that can be one of these name ...

File upload is one of the most common functions in project development. Spring MVC can well support file upload, but MultipartResolver is not installed in the context of spring MVC by default, so it cannot handle file upload by default. If you want to use spring's file upload function, you need to configure MultipartResolver in the context. Fr ...

The virtual DOM + Diff algorithm is adopted in Vue, which reduces the number of operations on DOM and greatly improves the performance. Today, let's talk about the implementation logic of this part of Vue in detail. I hope it can help the little partners who do not understand this part understand this part and play it purely by hand. I hope you ...

PC side web page effects 1, Element offset offset series 1. offset overview Offset translates to offset. We can dynamically get the position (offset) and size of the element by using the relevant attributes of offset series Gets the distance of the element from the position with the positioning parent elementGets the size (width and hei ...

Object data type - object Understanding Object data types - Object ​ 1. Is a data type in js and a complex data type ​ 2. It is a "box" that carries data ​ 3. It is an unordered data set and a set of key value pairs Creation of object data type ​ 1. Create objects literally (1) create an empty object: var obj = {} var obj ...

Today, I finally finished the exam that should have been finished a year ago. Tomorrow, I'm ready to start the lying down life (FOG) of my senior. Reviewing genetic engineering again is rewarding. In addition to professional progress, I also found this cold knowledge. Tossing results: Click to view Steps: Configure your blogExport xmind to ...

JS data type - reference type ··· 1. Array 1.1 basic syntax of array 1.1.1 array introduction Function: an array variable can store multiple dataComposition of array memory Elements: data in an arraySubscript: the position of data in the array (subscript will not jump)Length: number of elements 1.1.2 array syntax let variable name ...

cookie 1, Callback function A function is passed to another function as a parameter, function B is used as a parameter of function a, function B is called inside function a, and function B is called the callback function of function a. Syntax: function A(callback){ callBack() } B Is also a function A(B) Syntax 1: function success(cal ...