mastering react.js: beginner to pro in 30 days
Summary
TLDRThis guide offers a structured 30-day plan to master ReactJS, emphasizing its importance in the job market for frontend developers. It covers prerequisites like JavaScript proficiency and array methods, introduces class-based components, and progresses to hooks, lifecycle methods, and API integration. The author suggests practical exercises, such as building a to-do app, to solidify learning and offers a mentorship program for further support, promising a refund and compensation for ineffective results.
Takeaways
- 🚀 **Popularity of React**: Learning React is crucial as it is one of the most popular libraries, ensuring a place in the job market for developers.
- 💰 **Financial Incentive**: Mastering React can lead to financial success as a software or frontend developer.
- 📝 **Guide as a Reference**: The guide serves as a reference and checklist for learners to track their progress through various courses.
- 🛠️ **JavaScript Foundation**: A solid foundation in JavaScript is a prerequisite, especially in understanding array methods and basic data manipulation techniques.
- 🔢 **Array Methods Mastery**: Mastery of array methods like 'map', 'filter', and 'forEach' is essential before diving into React.
- 🌐 **Algorithm Practice**: Practicing on platforms like Code War to reach at least level five can provide a good grasp of basic algorithms, beneficial for React learning.
- 🏗️ **Class-Based Components**: Learning class-based components is recommended despite their declining popularity, as they provide a foundation for understanding hooks and are still in use in legacy projects.
- 🔄 **Transition to Hooks**: Understanding class-based components can make the transition to hooks smoother, as hooks build upon concepts introduced by classes.
- 📚 **Conceptual Understanding**: The guide emphasizes learning the core concepts of React, such as components, props, state, events, and rendering lists, to ensure productivity.
- 📈 **Derived State Concept**: The script introduces the concept of derived state, where combining different states can lead to new outcomes, similar to making an omelet with various ingredients.
- 🔗 **Context API**: Learning about the Context API is highlighted as an important feature that can significantly simplify development.
- 📝 **Building an App**: The importance of building an app to apply theoretical knowledge is stressed, with a suggestion to convert the app into hooks to understand their benefits.
- 🤔 **Self-Assessment**: Self-assessment through interview questions and speaking out loud to evaluate understanding and communication skills is encouraged.
- 📈 **Market Saturation**: The script mentions that having an edge, like mastering React, is essential in a saturated job market.
Q & A
Why is learning ReactJS important for a software developer?
-Learning ReactJS is important because it is one of the most popular libraries, which guarantees a place in the marketplace for a software developer, especially as a frontend developer. It is essential for those who want to make money with code.
What is the purpose of the guide mentioned in the transcript?
-The guide serves as a reference and checklist for learners to go through their course on ReactJS, ensuring they cover all the necessary concepts without wasting time on irrelevant technologies or concepts.
What are the prerequisites for learning ReactJS according to the transcript?
-The prerequisites include having a solid foundation in JavaScript, specifically becoming an expert in array methods, and understanding basic data manipulation techniques.
Why is it recommended to learn class-based components before hooks in ReactJS?
-Learning class-based components first makes the transition to hooks smoother, as hooks assume an understanding of many concepts introduced by classes. It also provides a better understanding of error boundaries and other advanced features.
What is the significance of mastering array methods like map, filter, and forEach in ReactJS?
-Mastering array methods is crucial because they are fundamental to manipulating data in ReactJS. Without a strong grasp of these methods, learners will struggle with React components and overall productivity.
What is the recommended approach to learning about components and props in ReactJS?
-The approach involves learning about components, creating as many as possible to understand the concept, and then learning about props. A Google doc with resources for learning these concepts is promised if the video reaches 50 comments.
Why is it important to understand the concept of state in ReactJS?
-Understanding state is important because it is a core concept in ReactJS that allows components to store and manage their own state, which is essential for building interactive UIs.
What is the significance of learning about events in ReactJS?
-Learning about events is crucial because they allow components to respond to user interactions like clicks, mouseovers, and input field changes, which are fundamental to creating dynamic applications.
What does the concept of 'derived states' in ReactJS refer to?
-Derived states refer to the combination of different states to achieve different outcomes, similar to mixing ingredients in an omelet. It is an advanced concept that helps in creating more complex behaviors in React components.
Why is it suggested to learn about lifecycle methods and API calls later in the learning process of ReactJS?
-It is suggested to learn about lifecycle methods and API calls later because beginners should first focus on the basics and become comfortable with them before introducing more complex concepts to avoid being overwhelmed.
What is the final project mentioned in the transcript, and why is it important?
-The final project is a basic to-do app that includes all the concepts taught throughout the course. It is important because it allows learners to test their understanding and application of the concepts in a practical scenario.
Outlines
🚀 Mastering ReactJS in 30 Days
This paragraph introduces a guide aimed at mastering ReactJS within a month. The speaker emphasizes the importance of learning React due to its popularity and market demand. The guide is intended to be a reference and checklist for learners following courses on platforms like YouTube or Udemy. It focuses on essential concepts that yield significant results, avoiding irrelevant material. Prerequisites include a solid foundation in JavaScript, specifically expertise in array methods, and reaching level five on Code War for basic algorithm understanding. The speaker also discusses the importance of learning class-based components despite their reduced usage in favor of functional components with hooks.
📚 Essential React Concepts and Pre-Requisites
The speaker continues to outline the prerequisites for learning React, such as understanding array methods like map, filter, and the importance of error boundaries in class-based components. They suggest starting with class components before moving to hooks, as this can make the transition smoother and provide a better understanding of hooks' underlying concepts. The paragraph also mentions the importance of learning about state, events, callbacks, and lifting state up, as well as rendering lists with keys, which are crucial for performance in React applications. The speaker proposes a Google doc with additional resources and a project idea for learners to practice these concepts.
🔍 Advanced React Techniques and Project Practice
This section delves into more advanced React topics, such as derived states, lifecycle methods, and API calls. The speaker advises introducing API calls and networking later in the learning process to avoid overwhelming beginners. They stress the importance of building an application to apply theoretical knowledge and suggest converting a class-based application to hooks as a learning exercise. The paragraph also touches on custom hooks and context, which are important for managing state and theming in larger applications. The speaker offers a basic to-do app project as a comprehensive test of the learner's understanding of React concepts and provides a list of interview questions for self-assessment.
🌟 Mentorship Program and Final Thoughts
The final paragraph discusses the speaker's mentorship program, which promises to teach everything needed to become a web developer within nine months, with a money-back guarantee and additional compensation for time wasted if the program fails to deliver. The speaker encourages viewers to reach out for more information about the program. They also invite viewers to comment for a Google doc containing additional resources and to share their thoughts and struggles with learning React, offering support and guidance for those facing difficulties.
Mindmap
Keywords
💡ReactJS
💡Frontend Developer
💡Class-Based Components
💡Array Methods
💡CodeWar
💡Props
💡State
💡
💡Callbacks
💡Lifting State Up
💡Rendering Lists
💡Derived State
💡Error Boundaries
💡API Calls
💡Hooks
💡Context
💡Interview Questions
💡Mentorship Program
Highlights
ReactJS is one of the most popular libraries, essential for securing a place in the software development marketplace.
This guide serves as a reference and checklist for mastering ReactJS through various learning paths.
Focusing on the 20% of concepts that yield 80% of the results to avoid wasting time on irrelevant technologies.
Prerequisite: A solid foundation in JavaScript including expertise in array methods.
Replicating array methods is crucial for understanding how tools work behind the scenes.
Recommendation to reach level five on Code War for a basic understanding of algorithms.
Teaching class-based components despite their decline in popularity for better understanding of existing projects.
Learning class-based components first makes the transition to hooks smoother.
Error boundaries in class-based components prevent application crashes.
The importance of understanding components, props, and state in React.
Learning to render lists efficiently, a common task in web development.
Derived States concept, combining different states to achieve various outcomes.
Life cycle methods and API calls introduced late to avoid overwhelming beginners.
Building an app is essential to apply and solidify theoretical knowledge.
Converting an app from classes to hooks to understand the advantages of hooks.
Learning about custom hooks and their role in React applications.
The significance of context in React for easier state management.
Building a to-do app to test understanding of all learned concepts.
Using interview questions for self-assessment and improvement.
The importance of self-reflection in the learning process to identify and overcome weaknesses.
Offering a mentorship program with a guarantee to become a web developer within 9 months.
Transcripts
this is a full guide that's going to
show you how to master reactjs in 30
days or less so let's get into it the
reason why you should learn react is
because it's one of the most popular
libraries out there and this library is
going to guarantee you a place in the
marketplace so if you want to make money
with code as a software developer as a
frontend developer you absolutely must
know this library and you have to master
it this guide will serve as a reference
and it's going to be some sort of
checklist and as you go through your
course on YouTube on Udi whatever you
want to do to learn if you don't want to
buy my stuff this guide is going to
serve as a reference as you go through
whatever course and path you're
following go back to this course and
check off every single concept that you
have learned from this course structure
this is going to cover the
20% that's going to give you the 80% of
the results so I don't want to waste
your time with I don't want to
waste your time with irrelevant
Technologies or irrelevant Concepts that
you have to learn I'm going to show you
only what you need that's going to make
you extremely productive in this day and
AG so as you can see on my screen we
have some prequisites I think that's how
you say that uh because you cannot just
get into react uh after like two or
three days of coding okay you need to
have a solid foundation in JavaScript
and I found that most of the time people
that come to work with me after they've
been following I don't know two three
years of coding courses they don't know
basic data manipulation techniques okay
so before before you even think about
getting into react you should become an
array methods expert I've made a video
here on this channel where I introduce
this uh exercise where I make you
replicate array methods so you know how
they work behind the scenes okay a lot
of people that have experience as
developers once they saw that video they
said okay I wish I knew this before I
started uh my career as a javascri
developer because most of the time
you'll be using tools and you don't
understand how they work and if you
don't understand how they work you won't
be able to use them properly and you'll
always be like in some sort of fog it's
like you're are driving with your eyes
blind you don't want to do that so there
is a video on my channel where I talk
about replicating array methods go and
do that but let's say you don't want to
do that you want to skip because you are
I don't know in a rush to learn react
then you must know by heart how for each
how map and how Filter Works these are
array methods you must absolutely nail
those down otherwise you will have a
very tough time cracking react I cannot
stress this enough okay please listen to
me okay I'm trying to sell you on this
because this is super important and also
a bonus I would recommend you to go on
this website called Code War where you
do algorithms and stuff like that and I
want you to reach level five I make all
my students reach level five before they
can unlock the react course because if
you get to level five you'll have a
decent understanding of like basic
algorithms and you will not struggle
going through the react portion of your
frontend developer Journey if that makes
sense these are the prerequisites
obviously there are a lot of other
things that you should know like
manipulating the Dom and so on and so
forth but I'm just going to assume that
you know that let's get into the road
map so something that I do which is
extremely weird compared with all the
other courses that are out there is that
I teach class-based component so if you
are new to react and if you don't know
anything about react or if you have some
knowledge of react maybe you heard of
this concept of a class-based component
I'm not going to show it to you here you
can go ahead and Google it because you
need to learn how to Google stuff by
yourself but essentially nobody is
really teaching that and uh nobody is
really using that nobody right if you
end up working in a company you'll be
surprised that you'll be working on
projects that have been developed you
know s eight maybe 10 years ago okay and
uh these projects are still using
class-based components and you'll
probably have to go in those projects
and change things add new things debug
things fix things right add on top of
that and if you do not understand how
class-based components work you'll come
in with a deficit you'll have a handicap
and that's why I recommend you to learn
from the beginning class classes class
components so you'll have an easier time
uh when you'll end up in that situation
because the likelihood of you getting
into a situation like that is very high
I would say maybe to around 80 90% what
I noticed is that if you learn
class-based components first the hooks
which is another concept that you'll
learn about
later will come to you way easier
because hooks assume that kind of you
understand a lot of Concepts that uh
classes have introduced
and a lot of people are saying that
hooks are way easier than classes and to
a certain extent I agree but for a
beginner making the transition from
classes to hooks is going to be way
smoother um if you understand the basic
theory of how classes work okay and also
classes have something called error
boundaries so you can prevent parts of
of your application from crashing with
hooks if one component of your page
crashes let's say something here crashes
with with hooks and with functional
components your entire application will
crash but if you use classes you can use
error boundaries which will stop your
application from crashing just parts of
it will crash and then you can contain
the rest of the issues okay that's my
take and then also class based
components have some extra features that
uh you need to be aware of I'm not going
to mention them in here because they're
quite Advanced okay so I will start with
classes then I would learn about
components and I would try to make as
many components as possible just to get
how this concept works and then I would
learn about props this kind of come hand
in hand and then in this Google doc and
by the way I'm going to leave this
Google doc um if this video reaches 50
comments so comment Google doc
underneath this video and whenever there
will be like 50 comments I'm going to
reply to your comment with this Google
Docs so then you can reference it
because I put some uh extra links and
extra resources for you to learn in here
so I found the website that looks like
this it's not too easy and it's not too
complicated I spent like 20 minutes
trying to find the right one because if
it's too easy then you won't learn if
it's too complicated then you'll give up
so I think this is a good um website to
recreate so you can learn how components
and how props work okay uh again comment
Google doc underneath this video and I'm
going to leave this Google doc for you
so then you can reference it then you
need to learn about State you need to
learn about events like click Mouse over
typing whenever you type something in an
input and so on and so forth need to
know learn about callbacks lifting State
up which is a very important
concept if you're a beginner it's kind
of difficult to explain this to you in a
video like this but if you go to the
react docs they explained pretty
well and rendering list okay this is
very important because if you if you
notice like if you go on the internet
literally anywhere you'll notice that
there are a few key things that happen
every single time we have events that
trigger fetching data so you land on
Twitter right on the Twitter website
then what will happen is Twitter the
client the front end will ask the back
end to give you the most recent tweets
from people that you are following right
and then you get a huge list of tweets
right that's a list then each tweet has
comments that's another list okay so you
need to learn how to work with list okay
and I left here again another resource
on how to render a list because this
thing called the key is very important
it's a very important Concept in react
and you should 100% uh learn this okay
and why you shouldn't do things in a
certain way we have another important
concept called derived States think
about an omelet I have both many courses
uh many programming courses because I
wanted to do my research into like what
other people are teaching right and I
noticed that a lot of people are
teaching you how to use very basic
concepts and they never get into the
meat and the potatoes of how to combine
different things to get different
outputs right and whenever we are making
an omelet right we have multiple
ingredients we have eggs we have the ham
we have the butter we have the Pan the
type of pan we we use to make The
Omelette then we have the what's the
name the onions and whatever you put in
The Omelette you mix everything together
and then you put that omelet and then
you prepare it and then you eat it right
but we took basic ingredients we com
combined them and then we got something
else now it's kind of the same with uh
with reactant with States we can combine
different things to get different
outcomes right and I want to show you
this thing again I'm going to leave the
link for this in this Google doc and
check this out so here we have a list
right and I search for dog over here and
then if I add some filters like for
example I want to
see uh
only English
ads um then I want to see
only
videos and I want to see only active ads
right so I'm going to apply these three
filters and essentially what I did is I
took one state which is the list of ads
then I applied another type of state
which is the language that I want to see
the ads in then I applied another type
of filter which is the media type I only
want to see videos and I only want to
see active ads so I added multiple types
of States combine them and I got
something else this is kind of how I
describe this omelet if you
may and it's a very important concept to
understand if you want to get really
good okay then uh we have life cycle
methods and we have API calls I
introduce API calls and networking and
stuff like that very late in my program
because I believe that you as a beginner
should focus on the basics and you
should nail those Basics and you should
be tired of the basics and then when you
are tired of the basics then we
introduce A New Concept because
otherwise you'll be overwhelmed if every
single day you get a new concept A New
Concept A New Concept like your mind
gets tired and you want be able to learn
and then you'll give up right you don't
want to give up you want to do it in a
methodical systematical way systematical
I hope that's word and then and only
then once we've learned all this then we
get into Hooks and my approach to hooks
is to take everything we've built so far
again you're going to follow your course
or your courses or your road maps
whatever you're following and then at
some point you'll build an app okay you
have to build an app you cannot just
read Theory this whole thing should
appli to an application and I'm going to
tell you what application to build in a
second don't worry about that but then
we take that application and then we
convert it into hooks because we need to
understand why are hooks better and then
how do you translate something made with
classes into Hooks and then hooks will
click and then you'll understand them
okay and then you learn about something
called custom hooks uh again I'm not
going to get into this but your course
should cover this again this is like a
checklist if you've done this this this
this this that means you understand the
basics of react okay uh you also need to
learn about context a very important
concept that you need to really get and
it's going to make your life so much
easier I cannot even explain how much
easier your life is going to be and then
we have a test okay here I have uh an
app that looks like this is a
very basic to do app but it's very
powerful because it includes all these
Concepts okay that I have explained in
here and I have some requirements for
this right and if you want to get the
requirements for this application so you
can build them at the end of your course
whatever course you're following comment
Google doc below this video and I'm
going to give you the Google Doc once we
have 50 uh comments and then you can
test yourself okay have I really learned
all this because if I cannot build this
application from over here then that
means you didn't learn it and that's a
good side bad feedback is still feedback
we just need to understand it if you
struggle with something that means you
do not understand some concept you need
to figure out what concept that is then
go back and relearn it three five 7 8
nine 100 times until you really
understand that thing do not move
forward ever if you do not understand
something at least 60 70% okay because
it's going to pull you back and then
also on this Google doc I have a list of
interview questions so then as you go to
your course as you're learning this
stuff you can use these interview
questions to test yourself to see if you
really understood certain things and
then I want you to like speak out loud
and if you see a question like okay what
is the difference between State and
props I want you to speak out loud and
you can use this app that I'm using to
record this video called Loom to record
yourself as you are answering those
questions and then you want to look back
at what you said and then you want to
judge yourself do I sound confident have
I said the right thing could I improve
the pronunciation of this thing can I
deliver this part a little bit better
you need to self-reflect every single
time you do something otherwise you will
suck you'll not know why you suck and
then you'll blame everyone else every
single Market nowadays is completely
saturated it doesn't matter if it's
coding Marketing sales whatever it is
every single Market is completely
saturated and you need an edge okay and
this checklist is going to give you that
edge guaranteed and you know what else
is going to give you an edge my
mentorship program you can join by click
in the first L the description and I'm
going to teach you every single thing
you need to know to become a web
developer and if I fail to do so in 9
months or less I'm going to give you all
the money back and $5,000 for wasting
your time I'm pretty much forced to help
you out and give you the best result
otherwise I'm going to go backuped
uh so that's how much I am invested into
uh this road map that I have created for
yourself okay so if you want to know
more about that click the first l in the
description and you'll speak either with
me or someone from my team and we'll
show you how everything works but yeah
if you want this Google doc just comment
uh Google doc underneath this video and
let me know what you think about react
what are you struggling with is uh is it
going as smooth as you wanted or are you
having some difficulties
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