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React Hook parent component retrieves data/functions of child components

We know that in react, props are often used to transfer child component data to parent component, but the function of parent component calling child component is not often used. Documentation says ref is not the best choice, but thinking of laziness and not learning redux, I found many tutorials on the Internet. Either the hook talks too little, or the father and son components are silly and confused, so I had to gnaw the document...

programmer group

1-4 linked list operation set (10 points)

This topic requires the realization of the operation set of linked list. Function interface definition: Position Find( List L, ElementType X ); List Insert( List L, ElementType X, Position P ); List Delete( List L, Position P ); The List structure is defined as follows: typedef struct LNode *PtrToLNode; struct LNode { ElementType Data; PtrToLNode Next; }; typedef PtrToLNode Position; typedef PtrToLNode List; Each operation...

youtube.com youtube.com

Java Tutorials || Java OOPS || Java Method Overriding || by Durga Sir

You an see more Java videos following link: --------------------------------------- Java tutorial by durga sir https://goo.gl/XWb4RL Java 9 by durga sir https://goo.gl/hXGyBW Java 1.8 Version New Features by Durga sir https://goo.gl/iHXXYU Adv Java JDBC Tutorial by Durga sir https://goo.gl/8q16Eo OCJA 1.8 Java SE 8 Programmer - I (1Z0 - 808 ) By Durga sir https://goo.gl/gC6R7f Core Java by NagoorBabu sir https://goo.gl/s6Nvj1 Advenced...

programmer group

WeChat small program to achieve pdf,word and other format file upload

At present, support is only obtained from chat records. I. Preface At present, an interface is provided by wx.chooseMessageFile. It allows users to select one or more files from the chat record, and then returns some of its information, including the path address, file name and size of the file. Access to these information, combined with the upload interface wx.uploadFile, can upload files.   2. Realization First you need a...

dev.to dev.to

Setting up GitHub Package Registry with Docker and Golang

Note: This was originally posted at martinheinz.dev Generally, for any programming language, to run your application you need to create some kind of package (npm for JavaScript, NuGet for C#, ...) and then store it somewhere. In case of Docker, people usually just throw their images into Docker Hub, but we now have new alternative here... The alternative is GitHub Package Registry - it has been in beta for a while now and it seems...