Programmer Think

Today, I will summarize the verification problems of complex forms. After learning, they can be directly used in actual development. I believe they will be helpful to you in actual projects. We all know that the elementUI component library has been improved. Today, let's take a look at its common form components. Generally, form modules that me ...

preface Learning video address: https://www.bilibili.com/video/BV1Zy4y1K7SH?from=search&seid=16946268743532201801Learning progress: this video is suitable for students with css, html, JavaScript and front-end and back-end interactionSummary of learning methods: https://editor.csdn.net/md/?articleId=116121563 Part I VUE Foundation 1 ...

1. Problem Description: Generally, when the login is successful, the user information and menu information need to be placed in vuex as global shared data. However, when the page is refreshed, the data in vuex will be reinitialized, resulting in data loss. Because the data in vuex is saved in the running memory, when the page is refreshed, the ...

preface This paper shares 12 interview questions on Vue high frequency principle, covering the core implementation principle of Vue. In fact, it is impossible to finish an article on the implementation principle of a framework. I hope that through these 12 questions, readers can have a certain understanding of their Vue Mastery (B number), ...

What initialization processes did import vue go through Vue mentioned in 1-5 JS source code construction process under the web application, the Vue built by Runtime+Compiler is analyzed JS, whose entry is Src / platforms / Web / entry runtime with compiler js 1,entry-runtime-with-compiler.js file parsing The final export is the vue object e ...

vue Vue is a "progressive framework": Vue Min.js only contains the core content of Vue [such as options api, data processing, template view parsing and other operations]; In the real project, we will import according to the demand vuex implements public state management Vue router realizes SPA (single page application) single p ...

E-book analysis Idea: when uploading e-books, multer middleware is used to complete the uploading process. After uploading, a file object will be generated in req. This file object represents an array to represent the sequence of files. The file object contains the file object, which contains the file name, file path, file resource type, etc, ...

1. Vue: First vue-cli project 1. What is vue-cli vue-cli is an officially provided scaffold for quickly generating a vue project template; A predefined directory structure and code base is like choosing a skeleton project when we create a Maven project, which is scaffolding and makes our development faster. Main functions: Unified director ...

Components are reusable Vue instances. If a part of a web page needs to be used in multiple scenarios, we can extract it as a component for reuse. Component greatly improves the reuse rate of code ** ** ** ** Extended reading: https://blog.csdn.net/YYxiaobao0726/article/details/86577481 1. Component name: Dash: hump type: Note: if it is hump ...

1. Calculated attribute: calculated Preliminary understanding of computed 1. Cache is supported. Only when the dependent data changes, the calculation will be re performed2. Asynchrony is not supported. computed is the dependent value, and the function will be re executed when the value changes. The calculation property takes the return v ...