Requirements: Encapsulate a function that requires monitoring the width and height changes of the DOM, and supports both custom instructions and hooks. Step 1: Create the project folder v-resize-xm 1. Create the src folder in the v-resize-xm folder Execute the pnpm init command to generate a package.json file 2. Install ts sudo npm install -g […]
Tag: hook
PWN · heap | unlink | free_hook[SUCTF 2018 New Recruitment Competition]unlink
After learning unlink in the early stage, I found a question called unlink in NSSCTF today and tried to do it without looking at wp. The process went smoothly! Foreword The questions are very bare in terms of unlinking knowledge points, very direct, and the ideas are very clear. 1. Title 2. Brief analysis of […]
Use of React function components (Hooks)
Table of Contents Hooks concept understanding 1. What are hooks? 2. What problems do Hooks solve? useState 1. Basic usage 2. Reading and modifying status 3. Component update process 4. Rules of use useEffect 1. Understand function side effects 2. Basic usage 3. Dependencies control execution timing 4. Clean up side effects Hooks concept understanding […]
To understand React Hooks, this article is enough
1. Understand what Hooks are In React, Hooks is actually a function. The name of this function starts with use, and the function returns a result; React Hooks actually encapsulate some common and public methods, which are some common tools. 2. Official Hooks Official Hooks refer to some Hooks officially recommended by React, such as: […]
How to Unleash the Power of React Hooks
React is a popular JavaScript library for building user interfaces that has undergone significant changes and improvements over the years. One of the most disruptive new features in React is the introduction of Hooks. React Hooks revolutionize the way developers manage state and lifecycle in functional components. In this comprehensive guide, take a deep dive […]
Python’s powerful hook function
Whatishook? Ahookfunctioncanbeunderstoodasahook,anditsfunctionistohangsomethingupwhennecessary.Thespecificexplanationis:thehookfunctionistohookourownimplementedhookfunctiontothetargetmountpointatacertainmoment. hookapplicationscenario(1) Ibelieveyouarefamiliarwithhookfunctions.I’veseensimilardesignsinrequestsandmitmproxy. requestsusehook Forexample,statuscodeneedstobeprintedinrequests: #requests_hooks.py importrequests r=requests.get(“https://httpbin.org/get”) print(f”statusdoce:{r.status_code}”) Printingthestatuscode,thisactioncanbeencapsulatedintoafunctionandthenpassedtorequestsasahookfunction. #requests_hooks.py importrequests defstatus_code(response,*args,**kwargs): print(f”hookstatusdoce:{response.status_code}”) r=requests.get(“https://httpbin.org/get”,hooks={“response”:status_code}) CodeDescription: Encapsulatetheprintingstatuscodeintoastatus_code()function,andreceivethehookfunctionstatus_code()throughthehooksparameterintherequests.get()method. Runresults: >pythonrequests_hooks.py hookstatusdoce:200 status_code()Asafunction,itcandomanythings,suchasfurtherjudgingthestatuscode,printingtheresponsedata,andevenencryptinganddecryptingthecorrespondingdata. mitmproxy-hook mitmproxyisaproxytool,whichwehavealsointroducedinourpreviousarticle.Duringthepacketcaptureprocess,youalsoneedtousehookstodosomeadditionalprocessingontherequestorresponse. #anatomy.py “”” Basicskeletonofamitmproxyaddon. Runasfollows:mitmproxy-sanatomy.py “”” importlogging classCounter: def__init__(self): self.num=0 defrequest(self,flow): self.num=self.num+1 logging.info(“We’veseen%dflows”%self.num) addons=[Counter()] Runmitmproxy >mitmproxy-sanatomy.py Implementhookbyyourself Whenitisnecessarytoimplementhooks,itiswhenafunction(class/method)cannotmeetallneedsbyitself,sohookscanbeusedtoprovidethepossibilityofexpandingitsowncapabilities. Itisnotdifficulttoimplementhooks,lookattheexample: importtime classProgrammer(object): “””programmer””” def__init__(self,name,hook=None): self.name=name self.hooks_func=hook self.now_date=time.strftime(“%Y-%m-%d”) defget_to_eat(self): print(f”{self.name}-{self.now_date}:eat.”) defgo_to_code(self): print(f”{self.name}-{self.now_date}:code.”) defgo_to_sleep(self): print(f”{self.name}-{self.now_date}:sleep.”) […]
[Source code explanation] sylar server framework—-hook module
hook introduction and implementation The hook module is used to 100% simulate the original system call functions related to network IO, and encapsulate the original system call functions. Its purpose is to create a layer of encapsulation on top of the original system call function. When using it, users will feel that the behavior is […]
OkayToCloseProcedure of Windows ObjectType Hook
1. Background Object Type Hook is an in-depth Hook based on Object Type, which is more in-depth than the commonly used SSDT Hook. For the analysis of Object Type, please see the article “Windows Driver Development Learning Record-ObjectType Hook’s ObjectType Structure Related Analysis”. The Hook used here is one of OkayToCloseProcedure. The article implements filtering […]
A brief discussion on React hook functions useMemo and useCallback
Foreword There are many officially provided hooks in React, such as useEffect, useState, useMemo, and useCallback. Some beginners can’t tell what scenarios useMemo and useCallback are suitable for. Today we will talk about these two hook functions. useMemo It is used to optimize rendering performance. useMemo will receive a callback function wrapped by an arrow […]
vue2 mixins and vue3 hooks
vue2 mixins and vue3 hooks vue2 mixins vue2 mixins hook function How to use Mixins in vue2 vue3 hooks What are hooks how to use vue2 mixins and vue3 hooks Mixins in Vue.js 2.x and Composition API (including hooks) in Vue.js 3.x are two different code organization and reuse mechanisms. Vue.js 2.x Mixins: Mixins are […]