Programmer Group

1. Questions left over from last lesson: There is a description in the official document about methods: Note that arrow functions should not be used to define method functions (for example, plus:()=>this.a++) Question 1: Why can't arrow functions be used in methods? Yes, you can, but you can't use this. There's a problem this is the obj ...

statement The statute draws entirely on this big man Collated content , I read it through 4 or 5 times. Personally, I feel that it is very good and comprehensive. But there are also some spelling and logic problems. On this basis, I made some corrections. Follow up meeting 2.2.4 notes Supplement the standard note format. Front end code sp ...

This demand is a complex data entry form (as shown in the figure below), which is divided into five steps. The sub forms of steps 1, 2, 4 and 5 are relatively simple input and selection. The most complex step is step 3: it is divided into six organization types. Each type can add (up to 10) and delete its organizations (companies), and each org ...

Supporting executable code example = > GitHub Vuex first met Vuex : a state management mode specially developed for Vuejs applications, which is applied to multi interface state management. It uses centralized storage to manage the state of all components of the application, and uses corresponding rules to ensure that the state changes ...

1. Ecology and advantages of vue3 Community ecology - gradually improvedOverall optimization - Performance Optimization / TS support optimization / combined API blessingMarket use - some companies with radical technology selection have used vue3 in the production environment Community ecology Component (plug-in) nameOfficial addressbrief i ...

1, About vue.extend (options) Explanation on the official website: use the basic Vue constructor Vue.extend to create a "subclass". A parameter is an object that contains component options. Note - in Vue.extend(), the data option must be a function. Generally, we will use Vue.extend to receive a component object to create a construc ...

scene The template uses conditional judgment to control the style of the page, which is the most common application. Vue provides two basic methods, one is the ternary operator we have talked about, and the other is v-if. Ternary operators control template styles Let's first look at the use of ternary operators to control the style of te ...

props and emit are usually used when transmitting data between parent and child components. props is used when transmitting data from parent to child. If a parent component transmits data to a child component, it needs to be transmitted to the child component first, and then to the child component. If multiple child components or multiple child ...

By Ravidu Perera Translator: front end Xiaozhi Source: medium There are dreams and dry goods. Wechat search [Daqian world] pays attention to this bowl washing wisdom who is still washing dishes in the early morning. This article GitHub https://github.com/qq449245884/xiaozhi It has been included. There are complete test sites, materials ...

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 ...