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A cascading menu code learning and the application of removeClass and addClass_javascript skills
A cascading menu code learning and the application of removeClass and addClass_javascript skills
Recently, I was learning some knowledge about the front-end of the web. When I saw a cascading menu on the left side of the blog homepage, I wanted to write a demo. Haha
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Summary of commonly used file operation functions in PHP
Apr 03, 2024 pm 02:52 PM
目录1：basename()2：copy()3：dirname()4：disk_free_space()5：disk_total_space()6：file_exists()7：file_get_contents()8：file_put_contents()9：filesize()10：filetype()11：glob()12：is_dir()13：is_writable()14：mkdir()15：move_uploaded_file()16：parse_ini_file()17：
How to add a class in jQuery?
Apr 03, 2024 am 09:01 AM
This article will explain in detail how to add classes in Jquery? , the editor thinks it is quite practical, so I share it with everyone as a reference. I hope everyone can gain something after reading this article. Two common methods for adding classes in jQuery 1. addClass() method The addClass() method adds one or more classes to the selected element. The syntax is as follows: $(selector).addClass(classNames); where: selector: the element selector to add the class. classNames: Classes to add, can be a single string or a space-separated list of strings. For example, the following code adds ac to the element with the ID my-element
SMS API interface calling example based on aggregated data-Python version
Apr 03, 2024 pm 01:28 PM
1. Apply for the interface through https://www.juhe.cn/docs/api/id/54. Self-service application to open the SMS API and obtain the interface request key. (Currently, the interface only supports enterprise users.) After applying, submit a text message template in the personal center. The official aggregation has provided a number of commonly used templates, which can be quickly applied for. 2. For the official interface document of python code example, please refer to: Https://www.juhe.cn/docs/api/id/54#!/usr/bin/Python#-*-coding:utf-8-*-importurllib, urllib2,sys,JSONreload(
Understand DI dependency injection in PHP in one article
Apr 03, 2024 pm 01:46 PM
Table of Contents What is DI/Dependency Injection Reasons for Dependency Injection Simple Dependency Injection High-Order Dependency Injection Application of Dependency Injection High-Order Optimization What is DI/Dependency Injection Dependency Injection DI actually refers to the dependence on classes through construction In layman's terms, it means that you are currently operating a class, but some methods or functions of this class cannot be completed by this class alone, but are the most direct sign that it can be completed with the help of another class. That is when the parameter data is passed as an object. Strictly speaking, you want to operate one class in another class. There is an interdependence between the two classes. The method of passing parameters is called injection. The reason why dependency injection occurs is that when dependency injection is not used, PHP needs to be in a When a class uses another class
Using JavaScript to implement infinite cascading menu processing
Jun 15, 2023 pm 09:09 PM
Infinite cascading menu is a very common front-end interaction method and is widely used in many scenarios. This article will introduce to you how to use JavaScript to implement infinite cascading menus. I hope it will be helpful to you. 1. Implementation ideas The ideas for implementing infinite cascading menus on the front end can be summarized as follows: Define the data source: usually a JSON object used to store all levels of menu data; dynamically render the menu: when a certain level of options is selected, dynamic Generate the next level of menu; achieve linkage effect: when selecting a certain level
Handle API authentication with Laravel Passport
Apr 03, 2024 pm 01:50 PM
We will learn to create an authentication system using Laravel's PassportapiOAuth. Step 1. Install Laravel We need to use the following command to create a latest Laravel application, so please open the terminal and execute: laravelnewauth Step 2. Install the LaravelPassport package LaravelPassport can implement a complete OAuth2 server for your application in a few minutes. composerrequirelaravel/passport Step 3. Run database migration Passport migration will create your application to store the client and AccessToke
Full record of the actual simulation process of JWT login authentication
Apr 03, 2024 pm 01:22 PM
Table of Contents Token Authentication Process Token Authentication Advantages Jwt Structure JWT Basic Usage Practice: Using JWT Login Authentication Attached: Why use jwt instead of session Summary Token Authentication Process As the most popular cross-domain authentication solution, JWT (JSONWEBToken) is deeply loved by developers The main process is as follows: the client sends an account and password request to log in to the server, receives the request, and verifies whether the account and password pass the verification successfully. The server will generate a unique token and return it to the client. The client receives the token. , after storing it in cookie or localStrge, every time the client sends a request to the server, it will pass cook
Detailed guide to operator usage examples in PHP
Apr 03, 2024 pm 02:25 PM
Contents Body Logical operators work on boolean values Not operators: 2 singular operators Body Once you have some variables, you can operate on them: $base=20;$height=10;$area=$base *$height;What I use to multiply base and height* is the multiplication operation. We have quite a few operators, let's give a brief summary of the main ones. First, here are the arithmetic operators. +,-,*,/ (division), % (remainder) and ** (exponent). We have the assignment operator =, which we have used to assign a value to a variable. Next we have comparison operators like,=. of these operators
