Programmer Group

Interview question: please explain the principle of vue2 response vue official statement: cn.vuejs.org/v2/guide/re... The ultimate goal of responsive data is to run some functions when the object itself or object properties change, the most common being the render function. In the specific implementation, vue uses several core compone ...

1, What is fetch()? fetch() is the browser's built-in global JavaScript method. It is used to issue http requests. It can be used directly without downloading and installing. // A simple http request fetch('http://example.com/movies.json') .then(function (response) { return response.json(); }) .then(function (myJson) { ...

prefaceThe official documents of TypeScript have already been updated, but the Chinese documents I can find are still in the older version. Therefore, some newly added and revised chapters are translated and sorted out.This article is compiled from "TypeScript Handbook" Typeof Type Operator "Chapter.This article is not translated ...

prefaceIt took some time to sort out the react router system, including the functional principles and basic implementation methods of common components. The code posted in this paper is the implementation of the core principles of each component, which will be slightly different from the source code. Please note that the source code address has ...

1, First knowledge modularization Modularization is the process of dividing the system into several modules from top to bottom when solving a complex problem. For the whole system, modularization is a unit that can be combined, disassembled and replaced. Modularization in the field of programming is to abide by the inherent rules and divi ...

W3C standard induction reference resources: https://www.w3cschool.cn/xuexiw3c/xuexiw3c-standards.html 1. Discard font label In the future, we will discard the font tag. The new page should not appear again. For example, the existing old page should also be replaced as much as possible during modification. Alternative method: < span cl ...

Black horse Pink's advanced javaScript object-oriented ES6 tutorial: https://www.bilibili.com/video/BV1Kt411w7MP?p=1 Based on the original tutorial, this paper sorts and cuts the directory structure. This paper summarizes the explanations, cases, PPT and source materials in the video, which are only used for personal review, learning, communic ...

Svelte is a new method of building Web applications. It has been tepid since its launch. It has not become the fourth largest framework after Angular, React and VUE, but it has not lost its popularity and nobody cares. An important reason for this is that svelte's core idea is to reduce the amount of code in the framework runtime through static ...

Previous points here: ↓ Summary of VUE interview questions (I) 11. What is the difference between v-if and v-show Reference answer: The v-show instruction allows an element to be displayed or hidden by modifying the CSS attribute of its display The v-if instruction directly destroys and rebuilds the DOM to achieve the effect of ...

preface Hello, guys, hello. Yesterday, we made a simple extension to the original voting function: we realized a simple questionnaire function. When implementing the questionnaire function, we encapsulated several different types of components: voting component, single choice component, multiple choice component, input component and scoring ...