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Sort array collapse array de redo callback function Bubble sorting significance It is to adjust an out of order array into an ordered array through the execution of code Logic: ​ 1. Traverse the array, compare two by two, and move the relatively large number backward ​ 2. After traversing, the result is that the largest number must be a ...

NodeJS backend development 08 log using log4js What is a log? Like keeping a diary, the log is printed out by the program, recording when and where events occurred within the program. This article is only for use learning. If you want to have a deeper understanding of log management and analysis, you can see = > This complete guide to log ...

Introduction: The content of today's article is very wonderful and practical. The last part will teach you to write the following cool applications in pure Python (the motion picture recording is too large, so it looks a little stuck after compression, but the actual operation is very smooth. It is recommended that you run and experience it yo ...

Summary of JS basic questions [refer to the "question of the original JS soul" of the three great gods of nuggets, JS advanced programming, web front-end interview - interviewer series, etc.] 1. The object is passed as a function parameter Say the running result of the following code and explain the reason function test(person) { ...

Function construction and sorting 1. Import jar package 2. Add file parser 3. Successfully set up the login success interface 4. Jump to the add interface through the "add Avatar" function of the interface 5 add the necessary Ajax file upload JS component 6. Realize the upload function and deploy the local gallery to the Tom ...

1. Grail layout Main: floating + margin left + relative positioning Write a large container containing middle,left and right. Put the middle in frontThe three containers below the container float and write the height of 200pxWrite 100% for the middle width. At this time, left and right are squeezed into the second line. Set the width of left ...

1, What is a form label The form is used to collect the user's input data, and then submit the data to the server 2, Form composition A form has three basic components: ① Form tag: This contains the URL of the program used to process the form data and the method to submit the data to the server. ② Form field: contains text box, password ...

The react redux library is no stranger to anyone who is familiar with react. In one sentence, it serves as a bridge between the "redux framework independent data flow management library" and the "react view library", so that the store of redux can be updated in react, and the change of store can be monitored and the related ...

Static properties and static methods We can assign a method to the function itself of the class instead of the "prototype" assigned to it. Such a method is called static. In a class, they start with the static keyword as follows: class User { static staticMethod() { alert(this === User); } } User.staticMethod(); // true ...

1. Concept Vuex is designed for Vue JS application development state management mode. It uses centralized storage to manage the status (data) of all components of the application. Vuex is also integrated into Vue's official debugging tool devtools. In short, Vuex is a Vue plug-in that implements centralized state (data) management in Vue. ...