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Transferred from: Micro reading  https://www.weidianyuedu.com/content/2317459000818.html When using JavaScript, we often have to write a lot of conditional statements. Here are five tips for writing cleaner and more beautiful conditional statements. 1. Use array Includes to handle multiple conditions Take chestnuts for example: // Condit ...

catalogue ref reference Dynamic component Slot Custom instruction Table case summary ref reference 1. What is ref reference ref is used to assist developers in Without relying on jQuery , get the reference of DOM element or component. Each vue component instance contains a $refs object , which stores the reference of t ...

The way of Vue middle road jump router-link Is the simplest way to achieve jump, also known as tag navigation. <router-link to='The path of the page to jump to'>text<router-link> When the browser parses it, it parses it into a label similar to. (1) Without parameters <router-link :to="{name:'home'}"><router-link& ...

The Fetch API is used to make Ajax requests, such as calling the API or getting remote resources or HTML files from the server. In the past, I have been very frank I prefer XHR to Fetch . I was wrong. Fetch is objectively better. It does everything I need with simpler grammar. Let's see how it works. Basic Fetch API syntax # For today's ar ...

Function and usage of new FormData() - FormData object in JS Introduction to js FormData method Formdata is ajax2 0 (XMLHttpRequest Level 2). Using the formdata object, the name and value of form elements can be combined to realize the serialization of form data, so as to introduce the splicing of form elements and improve work efficiency Fi ...

After reading this tutorial, you can learn the following knowledge points: Split components according to business requirements Knowledge of reusable components How child components receive data from parent components - in the last issue, we learned how to transfer data from parent components to child components Can use useState hoo ...

Principle or step analysis of dragging The initial position of the element, the mouse coordinates and the last mouse coordinates after dragging are known First click the element to get the initial position of the element and the initial position of the mouseWhen moving, get the last position of the mouse and calculate the distance difference o ...

follow [front end Xiaoao] , read more original technical articles class The newly introduced class keyword in ES6 has the ability to formally define classes, and the concepts of prototype and constructor are still used behind it Relevant code → Class definition Similar to function types, there are two main ways to define classes: cl ...

Introduction Trying to use Scalable Frontend 1 — Architecture Fundamentals When it comes to Dependency Injection, I feel a little unclear. I have found some information to understand it better. It is summarized in this translation record. OriginMy GitHub What is dependency injection In software engineering, dependency injection is a technol ...

How to Create a Simple CRUD Application using only JavaScripthttps://www.encodedna.com/javascript/how-to-create-a-simple-crud-application-using-only-javascript.htm You can use pure JavaScript to create basic single page applications. Today, you can find many comprehensive JavaScript frameworks for building complex front-end applications. I per ...