Usage and difference of js call(), apply(), bind()

1. call() Syntax: fun.call(thisArg,arg1,arg2,...) fun: represents a functionIf the object "this" and "this" are to point to the global object, then "this" and "this" are to point to the global object;Starting from arg1, it is the parameter to be passed to fun. characteristic: fun.call(thisArg,arg1 ...

Posted by mariocesar on Mon, 07 Mar 2022 10:46:41 +0100

[js30 Wes BOS] Gallery effects realized by Flex container

title: [native javascript project] Flex Panel 05date: 2021-11-17 20:10:40tags: native javascript projectcategories: 30 native javascript projectsintroductionThis paper introduces a dynamic screening web page. The knowledge points mainly involve flex container and element click events.Effect website: https://janice143.github.io/f...text1, html p ...

Posted by jimmygee on Mon, 07 Mar 2022 10:03:31 +0100

Understanding of uniapp configuration file

First of all, uniapp is similar to vue. There are pages when building projects JSON this file First introduce the next basic pages JSON file { "pages": [{ "path": "pages/component/index", "style": { "navigationBarTitleText": "assembly" } }, { "path": "pages/API/index", "style": { "navigationBarTitleText": "I ...

Posted by steve55 on Mon, 07 Mar 2022 08:53:14 +0100

JavaScript (form validation)

catalogue preface 1, What is form validation? 2, Categories of form validation 1. Simple verification 2. Regular verification 3. Secondary linkage (drop-down box) summary preface Last issue introduced how to operate css. Today, let's introduce the form verification of JS. 1, What is form validation? Get the value of the form l ...

Posted by gelwa on Mon, 07 Mar 2022 08:23:46 +0100

Implementation of Vue quill editor customization function (undo, redo)

Record the problems encountered in recent work. The requirement is to customize the undo and restore functions in Vue quil editor rich text: undo and redo. install npm install vue-quill-editor -S Of course, you can also use CDN. Here we talk about NPM installation Mount in component import 'quill/dist/quill.core.css' import 'quill/dist/qui ...

Posted by cowboysdude on Mon, 07 Mar 2022 04:29:49 +0100

Ruoyi Vue: detailed explanation of permission system design

This article attempts to explain why it is "trying" according to the permission design principle and actual combat in Vue system? Because this is also groping for understanding, not necessarily accurate According to Vue, the functions of permission management in the system are concentrated in the system management menu module, as sho ...

Posted by joshbb on Mon, 07 Mar 2022 02:53:44 +0100

The mobile terminal is compatible with Baodian Daquan and specializes in treating all kinds of discomfort

"The ancients' knowledge is weak, but their Kung Fu can only be achieved when they are young and old." **The mobile terminal is compatible with the encyclopedia and specializes in treating all kinds of discomfort, * * have you ever been distressed by various incompatibilities of the browser, especially the psoriasis of IE? This arti ...

Posted by y_oda2002 on Mon, 07 Mar 2022 02:22:34 +0100

Crawl CSDN columns locally and save them in html, pdf and md formats

preface I suddenly want to crawl CSDN's columns and save them locally. In order to have less impact, I specially select the front page of CSDN for display.Comprehensive information Where was this test point found? Click the hot article in the figure below, and then jump to the specific article , and then click the column to enter Cut the c ...

Posted by ciaranmg on Mon, 07 Mar 2022 02:07:17 +0100

Graduation project - Title: epidemic data analysis and visualization system based on big data

Article catalogue 1 Preface2 Introduction to development3 data set weibo.json Sina Weibo real-time hot search of the top 50 dataProvinceData. Details of epidemic situation in JSON provinces and cities 4 implementation technology 4.1 system architecture4.2 development environment4.3 epidemic map 4.3.1 choropleth maps4.3.2 bubble char ...

Posted by jck on Mon, 07 Mar 2022 02:03:25 +0100

The most detailed and complete flex flexible layout

First understanding Before learning flexible layout, we must first understand its concept flex is the abbreviation of flexible box, which means flexible layout. It is used to provide maximum flexibility for boxed models Any container can be specified as a flex layout .box{ display: flex; } Inline elements can also use flex layouts, of cou ...

Posted by networkthis on Mon, 07 Mar 2022 01:53:50 +0100