Notes on the fourth day of basic JavaScript

JavaScript Basics - day 4 notes Understand the meaning of encapsulation, be able to realize logical encapsulation through the declaration of functions, know the characteristics of object data types, and realize simple calculation functions in combination with mathematical objects. Understand the characteristics of function encapsulationM ...

Posted by rem on Thu, 08 Sep 2022 21:32:14 +0300

Java Web Basics - HTML and css

catalogue Edit HTML basic tag Entity symbol form Cell merge, th label Background color and picture picture Hyperlinks list Forms (relatively important to Java programmers User registration form and drop-down list file control and hidden control readonly and disable maxlength attribute id attribute div and span editing Three way ...

Posted by karq on Mon, 05 Sep 2022 21:22:32 +0300

Js Regular Expression Advanced Notes

Regular introductory notes study 3. Advanced Regular Expressions Introduction to understanding - JavaScript match() method Definition and Usage The match() method retrieves a specified value within a string, or finds a match for one or more regular expressions. Note: The match() method will retrieve the string String Object to find one ...

Posted by wolfraider on Sat, 03 Sep 2022 04:13:18 +0300

We can understand the source code - list page common hook packaging

This article is the sixteenth in a series of ahooks source code articles that have been compiled into documents- address . I think it's not bad. Give me one star Support me, thank you.List page common elementsFor some background management systems, a typical list page includes three parts: filtering form items, Table tables, and Paginatio ...

Posted by DeathStar on Fri, 02 Sep 2022 01:40:00 +0300

Component pass value - slot - props - dynamic class

7.11 Summary 1. Virtual DOM Through the js object structure, a data form that simulates the html tag structure, it is not a tag element, but the structure is similar to the tag element structure, virtual DOM only operates on data objects, and has nothing to do with page views, so the efficiency of virtual DOM execution More efficient than rea ...

Posted by ArmanIc on Wed, 31 Aug 2022 22:08:59 +0300

Front-end high-frequency interview questions (with answers)

Handwritten pubsubclass EventListener { listeners = {}; on(name, fn) { (this . listeners[name] || (this.listeners[name] = [])).push(fn) } once(name, fn) { let tem = (...args) => { this.removeListener(name, fn) fn(...args) } fn.fn = tem this.on(name, tem) } ...

Posted by grandeclectus on Wed, 31 Aug 2022 21:34:03 +0300

Dockerfile usage and case demonstration

What is a Dockerfile? A Dockerfile is a text file used to build an image. The text contains instructions and instructions for building an image. Why use a Dockerfile Question: Many images are officially provided in dockerhub to meet all our services, why do we need custom images? Core function: In the future, users can package their own ...

Posted by Bizzle on Wed, 31 Aug 2022 03:35:41 +0300

Vue2 Element description Component Column Merge

Preface Requirements are description s that need to be made into the first three columns and the remaining four columns of behavior. Well, what I'm saying is labeling, like this: You might say, "Well, why don't you use labelStyle or contentStyle to subtract tables, you fool?" I must have tried it. No way. First ...

Posted by pimp on Tue, 16 Aug 2022 23:09:54 +0300

Python homework - Crawler + visualization + data analysis + database (data analysis)

Personal blog Python homework - Crawler + visualization + data analysis + database (brief introduction) Python homework - Crawler + visualization + data analysis + database (crawler) Python homework - Crawler + visualization + data analysis + database (visualization) Python homework - Crawler + visualization + data analysis + database (dat ...

Posted by Dima on Sat, 13 Aug 2022 21:32:58 +0300

This article explains the database operation in python in detail

Database operation in python 1, Database programming interface 1. Connection object 2, Use built-in SQLite 1. Create database file2. Operate SQLite 3, Use of MySql database 3.1 install MySql3.2 setting environment variables3.3 start MySql3.4 using navicat for mysql management software3.5 installing PyMysql module3.6 connecti ...

Posted by fitzsic on Fri, 12 Aug 2022 21:54:17 +0300