Programmer Think

1. slot 1.1 slot - basic use of slot The slot of the component is also to make our package more scalableIt allows users to decide what is displayed inside the component The basic use of slots is added in the template label Default value button for slot If there are multiple values, they will be used as replacement elements when compo ...

v-text v-cloak V-text is equivalent to {}} for displaying content, but the difference is that {}} will cause flashing problems, and v-text will not flash If you want to use {}} without flickering, use v-cloak. The steps are as follows: Act on the v-cloak command on the template entry node managed by Vue Add a CSS hidden style of attribute ...

Implement a simple version of the web editor, without intelligent prompts, and will not automatically highlight labels (manual highlighting is required) vue is used+ Highlight.js + js-beautify The effect is shown in the figure below js implementation code formatting First, we will use the < pre > < / pre > and < code &g ...

And vue2 0 compared to vue3 What are the highlights of 0: Serial numbercharacteristicanalysis1PerformanceBetter performance than vue2 0 is 1.3-2 times faster2Tree shaking supportOn demand compilation, lighter volume3Composition APIComposite API, similar to ReactHooks4Better TypeScript supportBetter support for Ts5Custom Renderer APIExposed cus ...

1, Design project structure Because we implement todo as a functional component, the basic design idea is: 1. Create a todo folder in components and a new index JSX is a todo component. This folder contains some todo widgets 2. On app Import todo from 'is introduced into JSX/ Components / todo 'and render in render: import Rea ...

Js data type Basic data types (value types): Number, String, Boolean, Undefined, Null, Symbol (unique value added in es6) and BigInt (added in es10); Reference data type: Object. Contains Object, Array, function, Date, RegExp. Deep copy Only when the copy refers to the data type, the copy can be divided into shallow copy and deep copy ...

Note: This article mainly demonstrates the steps of accessing IM through the wechat applet developed by uniapp: Preparations: first, it is recommended that you save a copy of your project git to the remote warehouse before trying to access IM (prepare for the worst and recover later); The first step below is to connect IM to the project. If y ...

Object advanced Object creation mode Object constructor mode First create an empty Object object, and then dynamically add properties / methods var p = new Object() p = {} p.name = 'Tom' p.age = 12 p.setName = function (name) { this.name = name } console.log(p.name, p.age) p.setName('Bob') console.log(p.name, p.ag ...

1, Previously on vue router is a plug-in library of vue (used by Vue.use()), which is specially used to implement SPA applications. SPA application understanding: 1. single page web application (SPA) 2. The whole application has only one complete page. It will not jump to a new page, but only make local updates 3. Data is obtained through ...

catalogue Color model Differences between HSV and HSL Implementation selector Hue Calculate the slider position of the hue column Saturation and brightness Calculate these two values hsv to rgb transparency HSL based color selector Using canvas settings panel When developing the front-end interface, you need to use the color select ...