How To Master React In 2024 (Complete Roadmap)
Summary
TLDRThis comprehensive video offers an exhaustive roadmap for mastering React, guiding viewers through key concepts, from understanding the DOM and dynamic websites to components, state management, hooks, and performance optimization. While acknowledging React's declining popularity for website development, replaced by frameworks like Next.js, the video positions React as a prerequisite for learning Next.js and React Native for mobile app development. It covers essential topics like routing, styling, tooling, forms management, data fetching, and testing, providing a solid foundation for those embarking on the React journey.
Takeaways
- 😄 Understand the DOM and dynamic websites to appreciate the value React brings for building modern web applications.
- 🧠 Comprehend React's underlying reconciliation process and how it works under the hood to manage dynamic user interfaces.
- 🚀 Start with creating basic React apps (like a todo list or calculator) to understand how React components wrap HTML, CSS, and JavaScript.
- 🧱 Master React fundamentals: components, state, rendering, and props - the core building blocks of React applications.
- 🔄 Learn React hooks (useState, useEffect, useMemo, useCallback, useRef) to manage state and side effects in functional components.
- 🧰 Create custom hooks to encapsulate reusable stateful logic and separate concerns in your codebase.
- 🔗 Grasp concepts like prop drilling, context API, and suspense API to manage and optimize state across components.
- 📦 Explore state management tools like Redux, Recoil, or Zustand for better state management in larger applications.
- 🌐 Implement routing in your React apps to handle multiple pages and views using libraries like React Router.
- 💅 Learn styling techniques and libraries like Tailwind CSS, Material UI, or Styled Components to build visually appealing UIs.
Q & A
What is the purpose of this video?
-The purpose of this video is to provide a comprehensive roadmap for learning React, covering various topics that are essential for getting started with React development.
Why is it important to understand the DOM and dynamic websites before learning React?
-Understanding the DOM and dynamic websites is crucial because it helps you grasp the challenges and problems that React solves, and why it was adopted so quickly. It also provides an intuition for the difficulties of manipulating the DOM directly, which React aims to simplify.
What is reconciliation, and why is it important to understand how React works under the hood?
-Reconciliation is the process by which React updates the DOM efficiently. Understanding how React works under the hood, including reconciliation, is important because it helps you comprehend the principles and mechanisms behind React's performance and functionality.
What is the significance of building a basic React application and analyzing the output?
-Building a basic React application and analyzing the output helps you understand that React is ultimately generating HTML, CSS, and JavaScript code, similar to what you would write manually. It reinforces the concept that React is a tool to simplify and streamline the process of creating dynamic web applications.
What are the four key concepts in React that need to be understood?
-The four key concepts in React that need to be understood are components, state, rendering, and props. Understanding these concepts is crucial for creating React applications and grasping the power and principles behind React.
What is the purpose of hooks in React, and why are they important?
-Hooks in React provide a way to tap into lifecycle events and handle side effects in functional components. They are important because they allow developers to write more concise and reusable code, and enable the use of state and other React features in functional components.
What is prop drilling, and how can it be addressed in React applications?
-Prop drilling is an anti-pattern in React where state is passed down through multiple levels of components. It can be addressed by using the Context API provided by React or by implementing a state management solution like Redux or Recoil.
Why is routing important in React applications, and what are some popular routing libraries?
-Routing is important in React applications because it allows for handling multiple pages or views within a single-page application. Some popular routing libraries for React include React Router, Next.js (which includes routing), and Reach Router.
What are some popular styling libraries for React applications?
-Some popular styling libraries for React applications include Tailwind CSS, Material-UI, Styled Components, Emotion, and Chakra UI.
What are some performance improvement techniques and libraries mentioned in the video?
-The video mentions using libraries like React Hook Form and Formik for optimizing form management, libraries like SWR and React Query for efficient data fetching, and potentially writing tests for improved code quality and maintainability.
Outlines
🔑 Understanding Dynamic Websites and React's Inception
This paragraph discusses the importance of understanding the Document Object Model (DOM) and creating dynamic websites. It outlines the challenges of manipulating the DOM before the introduction of React and how frameworks like jQuery and Backbone.js attempted to simplify this process. It emphasizes the need to grasp the problems that React aimed to solve and why it gained rapid adoption by making front-end development more accessible.
🧩 React's Inner Workings and Reconciliation
This section focuses on understanding React's internal mechanisms, particularly the concept of reconciliation, which contributes to its performance. It suggests starting with writing raw HTML, CSS, and JavaScript, then progressing to using React as a layer of abstraction. The analogy of using an AI like ChatGPT to write React code is provided to illustrate the importance of comprehending the underlying technologies before relying on higher-level tools.
🚀 Building React Applications and Understanding the Output
This paragraph encourages setting up a basic React boilerplate locally, creating simple applications like a to-do list or calculator, and analyzing the final output. The goal is to understand that React ultimately generates HTML, CSS, and JavaScript files, with the benefit of abstracting away the complexities of dynamic JavaScript code. It serves as a practical exercise to reinforce the concept that React is a tool to facilitate writing these core web technologies.
🏗️ Components, State, Rendering, and Props
This section introduces the fundamental concepts of components, state, rendering, and props in React. It emphasizes the importance of understanding these terms and their relationships to grasp the power and design principles behind React. Mastering these concepts is presented as a prerequisite for creating a basic application like a to-do list.
🪝 Understanding and Creating Custom Hooks
This paragraph delves into the concept of hooks in React, which were introduced to handle lifecycle events and side effects in functional components. It highlights the importance of understanding popular hooks like useState, useEffect, useMemo, useCallback, and useRef, as well as their use cases. Additionally, it encourages creating custom hooks to separate state computation and component rendering, providing examples like fetching data from a backend.
🚦 Prop Drilling, Context API, and Suspense API
This section discusses prop drilling, an anti-pattern in React, and solutions like the Context API and state management tools. It also mentions the Suspense API, which is related to handling asynchronous data fetching. These concepts are presented as standard practices and techniques used in React applications to manage state and improve performance.
🛠️ State Management Tools and Routing
This paragraph focuses on state management tools like Redux, Recoil, and Zustand, which are external libraries used to manage application state more effectively and prevent unnecessary re-renders. It also introduces the concept of routing, which is essential for building single-page applications with multiple pages and handling different URLs.
🎨 Styling in React Applications
This section discusses styling in React applications, mentioning the option of using raw CSS, as well as popular CSS libraries like Tailwind, Material UI, Chakra UI, and Shadcn. It emphasizes the importance of choosing a styling approach and becoming proficient in at least one styling library for creating production-worthy applications.
🛠️ Understanding React Tooling and Build Processes
This paragraph covers the tooling and build processes behind bootstrapping a React application. It introduces concepts like Webpack, Babel, Create React App, and Vite, highlighting their roles in setting up and building React projects. While not essential for beginners, understanding these tools is valuable for interviews and handling specialized use cases like creating Chrome extensions.
🚀 Performance Improvements and Common Libraries
This section discusses performance improvements and common libraries used in React codebases. It covers form management libraries like React Hook Form and Formik, which optimize form handling and prevent unnecessary re-renders. Additionally, it mentions data fetching libraries like SWR and React Query, which provide hooks for fetching data from the backend. The paragraph also briefly touches on testing in front-end projects, acknowledging its importance while acknowledging the author's personal perspective on its practical implementation.
🌐 The Future of React and Next.js
This final paragraph discusses the transition from React to Next.js for building websites. It acknowledges that while React is still a viable option, Next.js is becoming the more popular choice, especially for open-source projects and companies. The author suggests learning Next.js if the goal is to dive into modern codebases, as it builds upon React but introduces its own set of patterns. For mobile app development, the paragraph recommends learning React Native, which has a smoother learning curve for React developers, and exploring tools like Expo.
Mindmap
Keywords
💡DOM
💡Reconciliation
💡Components
💡State
💡Hooks
💡Prop Drilling
💡State Management
💡Routing
💡Styling
💡Performance Optimization
Highlights
Understanding the DOM and making dynamic websites is crucial before learning React, as it provides insight into the challenges React solves and why it was widely adopted.
Grasping the concept of reconciliation and how React works under the hood is essential for comprehending its inner workings and performance benefits.
Building a basic React application locally helps understand how React is a wrapper for generating HTML, CSS, and JavaScript code.
Mastering components, state, rendering, and props is necessary to create basic React applications and understand the framework's core concepts.
Learning hooks, such as useState, useEffect, useMemo, useCallback, and useRef, is vital for working with functional components and managing side effects.
Creating custom hooks allows separating state computation and component rendering, providing better code organization and reusability.
Prop drilling, the context API, and the suspense API are concepts to address state management and performance issues in larger React applications.
State management tools like Redux, Recoil, and Zustand help manage application state and prevent unnecessary re-renders for better performance.
Routing libraries like React Router are essential for building multi-page applications with different URLs and views.
Styling libraries like Tailwind, Material UI, Chakra UI, and Stitches UI are recommended for consistent and production-worthy styling in React applications.
Understanding the tooling behind bootstrapping a React application, such as Webpack, Babel, Create React App, and Vite, is beneficial but optional.
Performance improvements can be achieved using libraries like React Hook Form, Formik for form management, and SWR or React Query for data fetching.
While frontend testing is optional, it's a good practice to learn and can provide benefits in maintaining code quality.
Next.js is becoming the popular choice for writing websites, while React Native is the framework for building mobile apps.
Learning Expo can make it easier to get started with React Native development, especially for beginners.
Transcripts
hi everyone complete react road map this
video is going to cover basically a
bunch of topics that I think is a good
exhaustive list of topics to know if
you're trying to get into react we'll be
covering them in order and the goal is
by the end of it you understand the
topics to learn when you're trying to do
react development Unfortunately today
react isn't enough to write frontend
projects before this video I was trying
to go through a few open source projects
trying to find one that's written in
react couldn't really find a good
company that's using react today most of
them have basically move to next but the
good thing is react is a prerequisite
for next yes so this video basically
considered it as a decent beginner road
map to create front ends the way they
were being created up until 2 years ago
now as I said react is being used uh
sorry next is being used for writing
websites and react native is the thing
that you need to learn if you want to
write mobile apps but a great overview
of how things were done up until 2 years
ago let's get right into it let's begin
with the first point understanding the
Dom and making Dynamic websites at this
point you need to understand what are
Dynamic websites how are they different
from static websites and how up until
react was introduced um it was very hard
to write Dynamic websites um in fact
there were a few Frameworks that I used
to use in college if you've heard of
them I don't know there's one called
jQuery that was fairly famous there's
another one called backbone J that was
the standard way to write not the
standard way but like the only popular
way that made it slightly easy to write
Dynamic websites which was used for the
longest time but then Frameworks like
react or view came into the picture and
and knocked these out of the park and
react became the more popular way to
write websites because it's more
developer friendly compared to these
Frameworks like jQuery to try to write a
basic Dynamic website without using
react preferably you don't even need to
use jQuery or or backbone just write it
in the completely raw way try to
manipulate the Dom and understand what
exactly Dom is the reason this is good
is because you get an intuition as to
what are the challenges or problems that
react fixes why it got adopted so
quickly because you know it made front
end development very easy the reason it
made it very easy was because it's very
hard to do Dynamic websites because of
the way the web is written all right
that's number one number two
understanding reconciliation and how
react actually works under the hood you
have to realize okay react is nothing
but a lot of JavaScript code that makes
it easy for you to write websites the
way they were written until react was
introduced a good analogy here is okay
you today can use chat GPT to write some
react code and under the hood react is
just another way to write the raw HTML
CSS JavaScript code that we've been
writing for years the one that I'm
writing you to write in point1 so the
way chj is an easy way to write react is
an easy way to write HTML CSS and
JavaScript the raw way write HTML CSS
JavaScript the raw way first then once
you're good at it feel free to use react
to write it in a different way once
you're good at react then feel free to
use an AI and make the AI write react
code for you this is the general good
trajectory to follow if you directly go
to an AI and ask it to write code
without learning the thing underneath
it'll basically become a problem very
quickly so keep this in mind and
understand what is reconciliation this
concept that sort of makes react
performant and also like makes it do the
things that it does all right number
three react as a rapper bring some basic
boiler plate react code locally to your
machine look at it try to change it a
little bit maybe create a simple to-do
application or a calculator application
and try to build the application when
you build the application try to look at
the final output that you get and you'll
realize k this final output is just a
bunch of HTML CSS and JavaScript files
only you haven't written a lot of
dynamic JavaScript code that you used to
write react wrote it for you and that's
what the benefit of react is so try to
write a few applications build them and
see the final output make sure you
understand in the end react is nothing
but it's writing my HTML CSS and
JavaScript code for me more specifically
just your JavaScript code this will also
give you a decent idea of how to create
a basic application in react from which
you start to learn some technologies
before you build some bigger projects
but a b basic calculator app is
something that you can build by this
point all right number four components
State rendering and props four Jaron you
need to know of very frontend framework
specific so not just react V also has
the concept of components and state
state and components are one a very
jargon to understand two if you
understand how they're related to each
other and why this distinction was made
between components in state is when
you'll understand the power of react and
you know why it was written The Way It
Was Written so make sure you understand
these four Jons State components
rendering and props at this point you
can create a very basic application
probably create the twoo application
after you understand these four things
you yeah you probably need to know these
four things before you can proceed all
right at this point good checkpoint
create a to-do application and move on
to understanding this thing called hooks
hooks weren't a concept in react for the
longest time front-end Frameworks coding
changes very quickly so react used to be
written a certain way until 20 I don't
know 18 19 and 20 remember and then came
the concept of functional components
which is a popular way to write react
components today if you're dealing with
functional components is when you sort
of have to deal with something called
life cycle events and to tap into these
life cycle events or to get access to
something called side effects you need
something called hooks there are a few
very popular hooks some of you might
have heard of use State use effect use
memo use callback use ref these are the
basic ones that you need to know of
understand a few use cases in these why
they are used why they are popular and
what extra benefit that they provide you
cannot create an application without use
state or use effect you can create
applications without use call back and
use memo but they give you some
performance benefits so it's good to
know all five of these is when you can
proceed to writing your own hooks so
Point number six is create your own set
of custom hooks join a bunch of these
hooks that I told you in the last point
and try to create some hooks of your own
uh they could solve a specific use case
for example a hook to get all the to-dos
for your to-do application or even
better maybe a hook that hits your back
end every 10 seconds and gets you the
latest data on the back end this will
give you an idea of how you can separate
State computation and the final
component rendering very well these
things might make more sense after you
you know start to learn this and and
reach 7 or 6 these things might make a
little more sense after you start to
learn these things these terms might
make a little more sense after you start
to learn react and reach the stage but
at a high level you need to know how to
write your own components and you need
to know how to write your own hooks with
that seventh Point prop drilling context
API and the suspense API um basically
again as time goes by and I add more
points here a lot of these are not
needed but they're standard everyone
uses them and there are good reasons why
they were introduced but you can create
any react application by everything you
know up until this point should you no
you should use all of these things that
I'm going to talk about from here prop
drilling is sort of an anti- pattern SL
a problem in react it's a pretty popular
interview question as well it's
basically you passing down state
component via component and you can get
rid of it by doing State Management
which is going to be the next point or
you can use the raw context API that
react provides you if you use the
context API then you're only inside the
react ecosystem system but if you move
on to the next point which is State
Management then you're also trying to
get rid of this thing called uh prop
drilling even more you're making your
app more and more performant but you are
adding an external library to your
codebase that Library could be Redux if
you've heard of it recoil zo stand there
are a bunch of other popular state
management Frameworks all of these the
goal is the same okay number one as your
application grows you want to manage
your state the thing that I talked about
in point number four you want to manage
your state a little bit better and you
want to prevent a lot of reenders in
your application making it more
performant for that you need an external
Library react does not provide you this
out of the box react does provide you
the context API but the context API is
not enough to make your application more
performant it is enough to get rid of
proper Drilling in your application
though all right Point number eight
State Management tools Point number nine
routing if you're creating a more
Dynamic application your application is
going to have a bunch of pages for
example Facebook has your feed page and
then a messages page and then and your
friends feed so on and so forth all of
these usually have different URLs in the
URL bar and react is what's called a
single page application so it needs to
support you know handling routes and you
know changing the current view based on
the current route that you're on for
that there are a few standard popular
libraries again feel free to pick anyone
and understand how you can create a
basic real application which has
multiple Pages not just one if you've
only created a Todo application or a
calculator application you probably did
not have too many pages but as you
create a real application you will you
know have 100 Pages sometimes so routing
is sort of important and if you open big
code bases you will see all the routing
is done in like a single separate fight
number 10 styling at this point you can
create a bunch of ugly websites you
probably don't want to create them in
production if you're creating a real
website you need to style it very well
you can use raw CSS in react no one's
preventing you from it but usually there
are standard CSS libraries for doing
styling across your application they're
all opinionated in in their own ways um
there's one called Tailwind material UI
and if you want to get into the big
players today there's one called TRX UI
and Shad CN I have a detailed video on
what you should choose in case you're
thinking of creating a production worthy
application tldr is tawi is probably the
right choice feel free to go through
that video but you need to spend a
decent chunk of your time here getting
comfortable with at least one styling
library number 11 this one's sort of
optional but again good to know
understanding the tooling behind
bootstrapping a react application how it
is built what is webpack what is pabble
what is create react tab why it's not
great and then what is weat how it came
into a picture to replace create react
app all of these are tooling these are
things you do once for your application
or if you're you know making a very big
change in your application introducing
something very weird for example if
you're creating a Chrome extension then
you have to worry about these things
usually you just bootstrap your
application and and are good to go but
these are good to know and usually asked
a lot during interviews number 12
performance improvements or some common
libraries that you will see being used
across a lot of code bases because they
give you some extra performance benefits
which are easy to miss if you're you
know writing react code for the first
time the first set of libraries where
you will see this is forms so if you're
creating a form in react it's very easy
to write it in an extremely unperformed
way to fix that a lot of smart people
have written libraries the two popular
ones are react hook forms and formic
high level what happens is if you do
form management yourself anytime you're
changing a form input field you do a r
render and the golden rule of thumb in
react is you have to minimize the number
of R renders so to prevent that you can
either write some really ugly code like
you used to before react was introduced
basically do Dom manipulation or Dom
access yourself or you can use these
libraries like um react hook forms that
pretty much under the hood do the same
thing and you give you a lot of
performance out of the box you don't
have to worry about this performance at
all if I'm being honest you won't notice
it on a website you will notice it in a
mobile app though so if you're going to
eventually use a react native it's good
to get comfortable with these libraries
all mobile projects most mobile projects
will use some Library like this to make
forms more performant else your
application you know will be really slow
right the other set of libraries you'll
see is libraries for fetching data from
the back end um these libraries give you
a lot of hooks which is something we
talked about a few points ago that make
it slightly easy for you to fetch data
from the back end popular ones are s SWR
and react query lastly testing this
one's optional uh if I'm being honest I
I don't see too much point in front end
tests I could totally be wrong and this
could be a controversial take and this
could cancel me but I've seen most open
source projects good projects otherwise
it's very hard for you to you know
maintain a lot of coverage in front end
tests is it a good thing to know
probably I I don't think there's any
downside to learning how to write tests
on a frontend codebase that said I've
mostly seen people being finicky SL you
know very strict when it comes to pack
in tests but people are okay if you
check in a component without writing the
test for it so feel free to pick and
choose whether or not you want to do
this point lastly that's a high level of
the react road map I think if you know
all of this you know 80 85% of what
react has to offer but as I said react
is no longer the popular choice when it
comes to writing websites next J is
slowly becoming that a lot of the react
team has moved over to versel who's the
pent company of next and there are good
reasons for it um so at this point you
can either write react websites on your
own but if you want to dive into open
source projects especially the new ones
like not g projects but like good
companies um you will notice all the
good bses are in next which is frankly
not too hard to pick from this point but
it has its own set of you no aners that
are good to know but a lot of it is just
react code and writing components so not
too hard to learn but at this point you
have to choose whether or not you want
to stay and react uh which is also good
but preferably probably learn nextg and
if you want to write mobile apps then
learn um react native it's very easy to
learn react native if you know react um
that said mobile is hard uh so you will
face a bunch of challenges when you make
this transition it's also good to know a
little bit you know how Android
development and iOS development actually
works under the hood and how react
native is just you know a rapper on top
of native there's something called Expo
that makes it slightly easy for you to
write react native code initially at
least and probably maybe even forever so
look into that in case you're thinking
of writing mobile apps and and don't
write them in raw react native at least
initially that's high level of the react
road map I think I've covered everything
maybe a little bit more of what's being
covered in the code as well so feel free
to learn it from any resource I think
I've covered all the Top If you like
such videos let me know if there's a
specific niche in which you want me to
make such a video let me know that as
well I'm happy to do that with that
let's end it I'll see you guys in the
next one
bye-bye
تصفح المزيد من مقاطع الفيديو ذات الصلة
Libraries vs Frameworks & The React Ecosystem | Lecture 135 | React.JS 🔥
How to Master React in 2024 - The React Roadmap
Course Introduction | Mastering React: An In-Depth Zero to Hero Video Series
The Complete App Development Roadmap [2024]
React JS Explained In 10 Minutes
What You Need to Know Before Learning NextJS
5.0 / 5 (0 votes)