TypeScript vs JavaScript in 2024 - Difference EXPLAINED
Summary
TLDRThis video explores the differences between TypeScript and JavaScript, highlighting their purposes, main distinctions, and the pros and cons of using TypeScript over JavaScript. It emphasizes TypeScript's type safety, additional features, and suitability for large projects, while noting JavaScript's ease of learning and versatility. The video also discusses career opportunities for developers proficient in both languages, suggesting that TypeScript is gaining popularity and can offer slightly higher salaries.
Takeaways
- 📝 JavaScript started as a simple language and evolved into a powerful tool for creating interactive web pages, apps, servers, and games.
- 🔍 TypeScript is a superset of JavaScript, adding features like type safety and other advanced programming capabilities.
- 🌐 JavaScript is dynamically typed, making it easy to learn but potentially prone to errors, while TypeScript is statically typed, offering safety but a steeper learning curve.
- 🛠 TypeScript requires compilation to JavaScript, which can be seen as an inconvenience by some developers compared to the direct scripting nature of JavaScript.
- 🔑 TypeScript's static typing allows for identifying errors during development, reducing runtime errors, unlike JavaScript which is interpreted.
- 🎯 TypeScript's additional features such as interfaces, type aliases, and abstract classes make it suitable for large-scale projects.
- 🏗️ JavaScript is ideal for smaller projects due to its simplicity and widespread use, while TypeScript is preferred for complex, enterprise-level applications.
- 💡 TypeScript can be frustrating due to the need for more code and setup compared to the flexibility and less code required in JavaScript.
- 💼 Both JavaScript and TypeScript developers are in demand, with TypeScript potentially offering slightly higher earning potential.
- 📈 TypeScript is gaining popularity, especially with new tools and frameworks like Angular and SJS being built using it.
- 📚 The choice between JavaScript and TypeScript depends on the project requirements, with JavaScript being versatile for many types of projects and TypeScript offering robust features for complex ones.
Q & A
What is the primary purpose of JavaScript?
-JavaScript was initially designed as a simple language to make web pages interactive. Over time, it evolved into a powerful language used for creating a variety of applications, including web pages, apps, servers, and games.
How does TypeScript relate to JavaScript?
-TypeScript is a superset of JavaScript, meaning it includes all of JavaScript's capabilities plus additional features such as type safety. TypeScript code is transpiled into JavaScript that web browsers can execute.
What is type safety and why is it important?
-Type safety is a feature that helps prevent certain errors by ensuring that a variable's type is consistent and predictable. It makes the code safer and easier to maintain, especially in large projects.
Why might developers choose TypeScript over JavaScript?
-Developers might choose TypeScript for its type safety, additional features like interfaces and type aliases, and its suitability for large-scale projects. It also helps in identifying compilation errors during development.
What are some disadvantages of using TypeScript compared to JavaScript?
-TypeScript requires an extra compilation step, which can be seen as an inconvenience. It also has a steeper learning curve due to its additional features and requires prior knowledge of JavaScript.
How does the learning curve of TypeScript differ from JavaScript?
-TypeScript has a more complicated learning curve because it includes all of JavaScript's features plus additional concepts like static typing and advanced object-oriented programming features.
What are some features that TypeScript brings to the table which JavaScript does not support natively?
-TypeScript introduces features such as interfaces, type aliases, abstract classes, and generics, which are not available in plain JavaScript.
Why was TypeScript created?
-TypeScript was created to address some of the shortcomings of JavaScript for large-scale and enterprise-level projects, providing features that make it more suitable for object-oriented programming and improving maintainability.
How does the job market view JavaScript and TypeScript developers?
-Both JavaScript and TypeScript developers are in high demand. JavaScript is the most wanted programming language, and TypeScript, being an enhanced version of JavaScript, is also gaining popularity, especially with tools like Angular and SJS being built using it.
What is the average salary difference between JavaScript and TypeScript developers in the United States?
-According to the script, JavaScript engineers in the United States earn an average of $120,000 per year, while those who know TypeScript can earn up to $135,000 per year.
What advice does the video give for choosing between JavaScript and TypeScript for a project?
-The choice between JavaScript and TypeScript depends on the project's requirements. JavaScript is great for smaller to medium-sized projects, while TypeScript is a smarter choice for large, complex projects due to its object-oriented features and development tool support.
Outlines
📚 Introduction to TypeScript and JavaScript
This paragraph introduces the video's aim to compare TypeScript and JavaScript, highlighting their purposes and differences. Daniel, the presenter, will explore the main distinctions between the two languages, discuss TypeScript's advantages such as type safety and additional features, and assess which language is more relevant today. JavaScript is described as a simple yet powerful language used for web interactivity, while TypeScript is portrayed as an 'upgraded' version of JavaScript with added features like interfaces and type aliases, making it suitable for large-scale projects.
🔍 Main Differences Between TypeScript and JavaScript
The second paragraph delves into the core differences between TypeScript and JavaScript. JavaScript is characterized as a dynamic, scripting language without the need for compilation, whereas TypeScript is a statically typed superset that requires compilation into JavaScript. TypeScript's static typing is a significant advantage, allowing for error checking during compilation, reducing runtime errors. The paragraph also touches on TypeScript's object-oriented features and its suitability for large projects, contrasting with JavaScript's flexibility and ease of use for smaller projects.
Mindmap
Keywords
💡TypeScript
💡JavaScript
💡Type Safety
💡Compilation
💡Dynamic Typing
💡Interfaces
💡Abstract Classes
💡Static Typing
💡ES6 (ECMAScript 2015)
💡Career Opportunities
Highlights
Introduction to the purpose of JavaScript and TypeScript.
JavaScript's evolution from a simple language to a powerful tool for web development.
TypeScript as a superset of JavaScript with additional features like type safety.
TypeScript's role as an open-source language that enhances developer productivity.
The main difference between JavaScript and TypeScript: dynamic vs. static typing.
JavaScript's use as a scripting language for interactive web pages.
TypeScript's requirement for compilation and its support for prototyping.
The lack of type concepts in JavaScript compared to TypeScript's robust type system.
TypeScript's suitability for large-scale projects due to its extended features.
JavaScript's ease of learning and its popularity for smaller projects.
Advantages of TypeScript: error identification during development, static typing, and compatibility with ES6 features.
Disadvantages of TypeScript: the need for compilation, a steeper learning curve, and setup challenges.
The rationale behind using TypeScript despite the availability of JavaScript.
The choice between JavaScript and TypeScript depends on the project's scale and requirements.
Career opportunities for JavaScript and TypeScript developers and the demand for both languages.
The earning potential for JavaScript and TypeScript engineers in the United States.
Encouragement for viewers to share their experiences and subscribe for more content.
Transcripts
my name is Daniel and in this video we
will explore both typescript and
JavaScript and figure out how they are
different from each other together
during this video we will find out the
purpose of these programming languages
we will talk about the main difference
between JavaScript and typescript we
will explore the pros and cons of
typescript compared to JS and finally
find out which of these languages is
more relevant today and shows more
promise ready let's go what typescript
and JavaScript are made for alright
before I even start comparing the two
languages it's important to understand
what they were made for this can help
you understand what they are like and
their advantages JavaScript
JavaScript started as a very simple
language over time it turned into a
powerful programming language that can
create a variety of things I would say
it's a programming language you can
easily learn but it can take several
years to become really good at it many
web developers use JavaScript to make
web pages apps servers and games more
interactive it goes well with HTML and
CSS helping to make web elements look
good and allow users to interact with
them which CSS can do on its own since
JavaScript is used in lots of different
things like websites mobile apps and
games learning it can be really useful
typescript
typescript is a superset of JavaScript
it has all the things JavaScript can do
plus some additional features when you
quote in typescript it gets turned into
JavaScript that web browsers can use
typescript also adds something called
type safety to JavaScript it's an open
source programming language so anyone
can contribute to its Improvement think
of typescript as an upgraded version of
JavaScript that makes developers lives
easier it helps them add type safety to
their projects and it brings along a
bunch of other cool features like
interfaces type aliases abstract classes
and more main differences between
typescript and JavaScript alright fellow
developer sounds like both languages are
pretty similar doesn't it so what's the
main difference between them well
JavaScript is a dynamic programming
language while typescript is aesthetic
and it's the main thing that differs one
from another JavaScript is dynamically
typed while typescript is a set
technically type upgraded version of JS
this means it allows both strict static
typing and dynamic typing this makes
typescript code safer but it can also be
a bit more challenging to write so the
language you pick depends on your
project and the style of quote you
prefer to use however the difference
between these two languages don't stop
there here are some other things that
make them different JavaScript is a
scripting language used to make web
pages interactive while typescript is an
expanded version of JavaScript
typescript code requires compilation and
JavaScript code doesn't typescript
supports prototyping while JavaScript
doesn't in typescript you use scenes
like types and interfaces to explain the
data you are working with but in
JavaScript there is no such concept
typescript offers a robust time system
with features like generics and
JavaScript capabilities making it well
suited for large projects on the other
hand JavaScript is a great choice for
smaller projects and finally JavaScript
is an easy language to learn while
typescript has a bit more complicated
learning curve and requires prior
knowledge of scripting advantages of
typescript over JavaScript guys before
we move on I try to make educational
content in an entertaining way make it
fun instead of boring in return please
like this video And subscribe to my
Channel if you enjoy my content
all right it folks might ask what is so
special about typescript what can make
developers choose it over.js in fact
there are a few distinctive advantages
of using typescript over JavaScript
first of all typescript identifies
compilation errors during development
that is before code runs this reduces
the chances of runtime errors in
contrast JavaScript is an interpreted
language secondly typescript offers
static or strong typing this means it
allows type correctness checks during
compilation and that sounds in
JavaScript cannot do and finally
typescript is essentially JavaScript
with extra features including those from
es6 while these features might not be
supported by your chosen web browser the
typescript compiler can convert TS files
into ES3 ES4 and es5 versus Z are
compatible disadvantages of typescript
but even despite all its great features
typescript isn't perfect you're not
perfect I'm not perfect because there is
a number of things about it that might
annoy developers first of all 20s file
compilation happens typescript requires
an extra step and this extra step can be
seen as an inconvenience for developers
and this is why many of them prefer to
avoid working with typescript another
important disadvantage is that learning
typescript is more challenging compared
to JavaScript typestrip demands more
scripting expertise besides many
developers prefer mastering JavaScript
first before working with typescript and
in my opinion this is a smart way to
learn typescript and finally for
programmers typescript can be a bit
frustrating when it comes to setting up
things one of the main downsides is that
you have to write a lot of things by
hands unlike JavaScript where you have
less code to write and more freedom
typescript can feel a bit hard and
unflexible in comparison why use
typescript when JS is available so after
you consider all these pros and cons you
might have a question I myself had at
some point if there is Javascript and
it's so popular and widespread why use
typescript then you see when JavaScript
first came into Bane the folks who made
it through of it as a language for
making things happen on the client side
but over time they saw that it could
also do some stuff on the server side
however as people use JavaScript more
and more they noticed that it was
getting a bit complicated it couldn't do
ever since that a full-fledged
object-oriented programming language
should do that's why this made it hard
for JavaScript to be a Top Choice for
big business projects as a server side
tool and that's why the developers came
up with typescript to fix these gaps and
make JavaScript more suitable for big
projects and really big projects I mean
Enterprise level projects
so typescript or JavaScript Technologies
including programming languages change
every day so which one should you choose
as a developer who keeps up with the
times here is the thing guys decide in
which language is better or which one to
use is entirely up to you and depends on
the task or project you have to build
JavaScript is a fundamental scripting
language that remains a topic for many
developers because it's versatile has
lots of features and a big Community
it's great for small and middle sized
projects like making interactive
websites now if you have a big project
with lots of code typescript can be a
smarter Choice it's a newer language
with object-oriented programming
features generics and good support from
development tools it's designed for
complicated projects and can provide
what JavaScript just couldn't that's why
it's only up to you to decide which ones
use your project better
career opportunities
people I will tell you right away a
qualified JavaScript typescript
developer won't face any problems
looking for a job because JavaScript was
invented to make early websites more
interactive it's been getting more and
more popular ever since today it's the
most Wanted programming language out
there plus typescript which is like a
Spartan version of JavaScript is also
becoming popular typescript has been
getting more attention recently and some
new JavaScript tools like angular and
sjs are made using typescript too and
according to data JavaScript engineers
in the United States earn 120 000 per
year on average at the same time those
who know typescript can learn as much as
135 000 per year so as you can see there
is a difference between JS and GS
salaries but it's not a big one so guys
that's all about typescript javascripts
and their differences I also attach
Learning Materials related to these
programming languages in the description
down below let me know what you think
about this languages feel free to share
your experience in the comments don't
forget to like this video if you enjoy
my content and subscribe if you want to
see more videos like this think about it
until next time
foreign
[Music]
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