Depth Copy and Assignment of js Foundation
What is a deep/shallow copy? What is the difference between assignment and implementation? Shallow copy: The basic data type and the reference data type have different representations. The basic data type pointer points to the stack memory, the copy is the value, and the reference data type poiUTF-8...
Posted by JohnMC on Thu, 07 Oct 2021 04:16:23 +0530
uniapp-inter-page communication
Navigation Jump in uni navigate API uni.navigateTo(OBJECT) Keep the current page, jump to a page within the application, and use uni.navigateBack to return to the original page. OBJECT Parameter Description parametertypeRequiredDefault valueExplainPlatform Difference DescriptionurlStringyesThe UTF-8...
Posted by tisa on Thu, 07 Oct 2021 06:32:02 +0530
[JS] use of callback function / event callback
1. What is a callback function? What is the function? In JavaScript, functions are objects. Therefore, a function can take a function as an argument and can be returned by other functions. The function that performs this operation is called a higher-order function. Any function passed as a paraUTF-8...
Posted by vigiw on Thu, 07 Oct 2021 08:08:09 +0530
You must see the detailed explanation of the use of slots in Vue!
1. Introduction Slot is a placeholder provided to the parent component in the child component. It is represented by < slot > < / slot >. The parent component can fill any template code in this placeholder, such as HTML, component, etc. the filled content will replace the < slot > < / slot > tagUTF-8...
Posted by oaf357 on Thu, 07 Oct 2021 09:24:40 +0530
shiro learning notes - userrealm BeanUtils simpleauthenticationinfo
UserRealm public class UserRealm extends AuthorizingRealm { private UserService userService = new UserServiceImpl(); protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) { String username = (String)principals.getPrimaryPrincipal(); SimpleAuthorizationInfo authorizaUTF-8...
Posted by psychomossel on Thu, 07 Oct 2021 10:00:20 +0530
Vue05 Axios asynchronous communication
Axios asynchronous communication 1. What is Axios Axios is an open source asynchronous communication framework that can be used in browser and Node JS. Its main function is to realize AJAX asynchronous communication. Its functional features are as follows: Create XMLHttpRequests from the browseUTF-8...
Posted by vaavi8r on Thu, 07 Oct 2021 10:36:30 +0530
Learning notes | HTML -- head tag about HTML (404 interface example)
Previous article: Learning notes | basic HTML structure and basic Tags - the first step in front-end learning! As we know, in HTML language, a page consists of four parts: Document declaration: html tag pair: < html >Head tag pair: < head >Body tag pair: < body > In the head tagUTF-8...
Posted by windwaker on Thu, 07 Oct 2021 14:39:32 +0530
[algorithm LeetCode] 1013. Divide the array into three parts equal to sum (Array.reduce(); double pointer)
1013. Divide the array into three equal parts - LeetCode Released: 21:18:48, October 7, 2021 Problem description and examples Give you an integer array arr, which returns true only when it can be divided into three and equal non empty parts, otherwise it returns false. Formally, if you can findUTF-8...
Posted by chopperwalker on Thu, 07 Oct 2021 20:46:37 +0530
2021SC@SDUSC [software engineering application and practice] Claygl project code analysis
2021SC@SDUSC catalogue 1, Basic idea of particle system 2, Emitter.js 1. Introduction 2. Code analysis 1, Basic idea of particle system The basic idea of particle system: many small particles of simple shape are gathered as basic elements to form an irregular fuzzy object. Each particle experieUTF-8...
Posted by qbox on Thu, 07 Oct 2021 21:06:47 +0530
day4 focus: solutions to asynchronous programming
day4 Solution to asynchronous programming Callback function (callback hell) Generator (generator function) Promise (promise object) aync is the easiest solution to asynchronous programming 1.Generator function (solution of asynchronous programming) Formally, the Generator function is an ordinarUTF-8...
Posted by Dtonlinegames on Thu, 07 Oct 2021 22:50:36 +0530