Re combing the basic knowledge of ECMAscript in JavaScript
catalogue
1, Operator
1. Arithmetic operator
Find the area of a circle
2. Assignment operator
3. Unary operator
4. Comparison operator
5. Logical operators
6. Operator priority
2, Statement
1. Expressions and statements
2. Branch statement
1.if branch statement
Case:
Case:
2. Ternary operator
Case:
3.switch statement
Case: s ...
Posted by Matt Kindig on Mon, 06 Dec 2021 12:48:38 -0800
vue2.0 conditional rendering
Conditional rendering instruction
1.v-if and v-else2.v-show
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Vue conditi ...
Posted by todd2006 on Sat, 04 Dec 2021 17:37:15 -0800
HTML5 final assignment: blog background system website design - simple general article blog background system (5 pages) HTML + CSS + javascript web page design and development
HTML5 final assignment: blog background system website design - simple general article blog background system (5 pages) HTML + CSS + javascript web page design and development
Common web design topics include individuals, food, companies, schools, tourism, e-commerce, pets, electrical appliances, tea, home, hotels, dance, animation, stars, ...
Posted by paulsiew2 on Fri, 03 Dec 2021 16:31:48 -0800
php+mysql to achieve a simple library management system
php+mysql to achieve a simple library management system
ps: the front-end page design is a little ugly. I'll make do with it. Ha ha ha. It does not have user and administrator functions. If you want to realize it, you only need to selectively use the function of the home page according to the account information in the database. Database relat ...
Posted by leena86 on Fri, 03 Dec 2021 14:26:06 -0800
vue.js front end development technology reading notes 1: introduction to vue
In order to facilitate typing, all vues are unified as lowercase Vue
1, Getting started with vue
❤️❤️❤️ What is vue and its characteristics? What are the advantages of vue in front-end development? How to download vue and introduce and apply it? Instantiate vue objects, data and methods? How to mount data to DOM pages? MVVM mode in vue? ...
Posted by laide234 on Fri, 03 Dec 2021 08:38:41 -0800
HTML5 final assignment: website design of cosmetics shopping mall - e-commerce cosmetics shopping mall (1 page) HTML+CSS+JavaScript HTML web page design of e-commerce - cosmetics
Common web design topics include individuals, food, companies, schools, tourism, e-commerce, pets, electrical appliances, tea, home, hotels, dance, animation, stars, clothing, sports, cosmetics, logistics, environmental protection, books, wedding dress, military, games, festivals, smoking cessation, movies, photography, culture, hometown, flowe ...
Posted by werlop on Wed, 01 Dec 2021 17:48:05 -0800
[back end integration] new program Day3
1. Explanation of spring framework
1.1 single case and multiple cases
1.1.1 description of single case and multiple cases
Singleton: there is only one singleton in memory (even if it is not created, the system defaults to singleton)Multiple examples: there may be multiple copies in memory
1.1.2 create project springdemo5_base
...
Posted by xcali on Tue, 30 Nov 2021 21:46:55 -0800
Javascript statements and operations and some supplementary contents
1, Statements about Javascript
preface:
Our js code is executed sequentially (from top to bottom)Logical branching is to decide whether to execute some code according to the conditions we set
1. Program statement:
Program = statement + data structure + algorithm
2. Conditional statements:
Definition: determines which statements need to be ...
Posted by srarcade on Tue, 30 Nov 2021 17:01:42 -0800
About arrays of functions
1, What is an array
1. An array is a set of ordered data 2. That is, we put some data in a box and arrange them in order. This thing is an array and a collection of data
3. We can see that all data types are divided into two categories:
a.Basic data types: (five categories) number/string/boolean/undefined/null
b.Complex data type:Ob ...
Posted by corsc on Mon, 29 Nov 2021 13:59:03 -0800
Educator - web: page elements and attributes
1. Structural elements
1.1 related concepts of document structure elements
1.1.1header element
The header element is a structural element that represents the header. It is usually used to place the title of the whole web page or a content block in the page, but it can also contain other elements, such as title (< H1 > ~ < H6 > ...
Posted by mchaggis on Mon, 29 Nov 2021 10:28:23 -0800