HomeIT GlossaryJavaScriptWhat are the key differences between JavaScript and TypeScript?

What are the key differences between JavaScript and TypeScript?

JavaScript (JS) and TypeScript (TS) are closely related, but they differ in type safety, scalability, and developer experience. JavaScript is a dynamic, loosely typed scripting language, making it highly flexible but prone to runtime errors. TypeScript, a superset of JavaScript, introduces static typing, better tooling, and improved maintainability, making it ideal for large-scale applications.

TypeScript compiles to JavaScript, meaning all TS code eventually runs as JS in the browser or Node.js. While JavaScript is perfect for quick, small projects, TypeScript provides stricter code quality and debugging benefits for complex applications.

Key Takeaways:

JavaScript → Dynamically typed, best for small projects & rapid prototyping.
TypeScript → Statically typed, ideal for large-scale applications & maintainability.
TypeScript compiles to JavaScript, ensuring browser compatibility.

Hire remote TypeScript developers

Choose and hire TypeScript developers and engineers based on your needs and preferences.

Dejan Velimirovic
Full-Stack Software Developer
JavaScript TypeScript Strapi Next.js Gatsby Shopify Software Freelance Startup E-commerce Front-end Java EE Elm Ajax
Available immediately
Dejan is an experienced software architect and developer with over 19 years of experience in web technologies. He excels in product development across healthcare, finance, and SaaS solutions, and has led complex software architecture projects. Dejan is a great fit for you if you seek a highly adaptable, versatile engineer and architect with DevOps expertise.
Previously at
View profile
Ivan Janjić
Fullstack Developer
Angular .NET JavaScript Tailwind CSS TypeScript Node.js Vanilla JS Web3 Redux
Available immediately
If you need a FullStack developer with over 15 years of active experience, Ivan is the one. With a focus on .NET and Angular, he has developed custom solutions for niche clients in industries like automotive, food, and oil. Hire him today!
View profile
Aleksandar Orelj
Full-Stack Developer
JavaScript Vanilla JS React Next.js Node.js TypeScript Software Front-end Elm Vue.js
Available immediately
With over 7 years of experience in both starting projects from scratch and rewriting existing ones, Aleksandar has extensive expertise in desktop, web, and mobile development across various niches. What sets Aleksandar apart is his team-leading experience and his ability to work independently while mastering new technologies.
Previously at
View profile
Luka Patarcic
Technical Lead
JavaScript React TypeScript Next.js Node.js
Available immediately
Seniority verified on Oct 03, 2022
With over 7 years in web and mobile development, Luka combines technical expertise and leadership to solve complex problems and deliver top-quality projects from start to finish. Brining verstaile tech stack and leadership experience Luka has worked on various projects from
Previously at
View profile
Branislav Totic
Fullstack Developer
JavaScript React TypeScript Next.js Node.js Jamstack Gatsby Tailwind CSS Vanilla JS Web3 Web Website Front-end
Available immediately
Branislav is a full-stack developer with over 6 years of experience and a strong skill set in web development. Through his diverse project experience, Branislav has proven to be an organized and reliable individual. He is a good colleague for those seeking a fast learner.
Previously at
View profile
Emir Salihović
Fullstack Developer
Next.js React JavaScript TypeScript Node.js Stripe
Available immediately
Seniority verified on Oct 03, 2024
Emir is an experienced software engineer with versatile expertise in web and cross-platform mobile applications for both iOS and Android. He specializes in building robust back-end services and APIs, as well as developing fast, scalable web applications with server-side technologies. His experience spans various domains, from the food industry to AI-based applications.
View profile
Aleksa Stevic
Full-Stack Developer
JavaScript React Next.js Node.js Gatsby TypeScript Vanilla JS Strapi Software Website Offshore Startup Front-end Ember.js
Available immediately
In over 5+ years of experience in FatCat Coders, Aleksa has shown both strong self-management and teamwork. His extensive experience encompasses both teamleading and individual projects. He is an ideal addition to your team if you are looking for versatility along with a commitment to high code quality and creative solutions.
Previously at
View profile
Milena Brankovic
Fullstack Developer
JavaScript TypeScript React Node.js Next.js Gatsby Redux Jamstack Stripe Vanilla JS Startup Flask
Available immediately
Looking for a developer who delivers results fast? Milena, with over 5 years of experience and expertise in Ruby on Rails, ReactJS, and NodeJS, is the perfect fit. She's transformed projects like Calendly and FoxVision, combining speed, skill, and dedication to drive success.
Previously at
View profile
Vanja Culum
Fullstack Developer
React Next.js Node.js JavaScript Vanilla JS TypeScript Tailwind CSS Web Offshore Front-end
Available immediately
Vanja is a developer with a strong focus on ReactJS and NodeJS, bringing over 4 years of experience across various projects. His fast and reliable frontend skills, combined with a keen eye for backend details, make him an ideal extension for your remote team, especially for web-based projects.
Previously at
View profile
Andrija Djuric
Fullstack Developer
JavaScript React Next.js Node.js Redux Vanilla JS TypeScript Front-end Ember.js
Available immediately
Andrija is an experienced developer with 5 years of experience ensuring strong commitment and dedication to his clients and their unique products. Working in Scrum teams with versatile technologies, Andrija has developed unique software features. With a strong command of the English language, Andrija is a perfect addition to your team.
Previously at
View profile
Danijela Vukosav
Fullstack Developer
TypeScript JavaScript React Redux Node.js
Available immediately
Looking for a Fullstack Engineer with a versatile skill set and an engineering degree? Meet Danijela! With over 4 years of experience, she’s a pro in frontend technologies like TypeScript, JavaScript, React, and Redux, and she’s just as skilled on the backend. A quick learner and a problem-solving ace, Danijela thrives on tackling complex challenges across the full development stack.
Previously at
View profile
Darko Simic
Fullstack Developer
JavaScript Vanilla JS React Node.js Next.js TypeScript Gatsby Jamstack Strapi Stripe Software Startup Front-end Vue.js
Available immediately
Looking for a developer who delivers quality and efficiency? Darko is a highly skilled full-stack developer with over 3 years of experience handling complex projects. His ability to quickly adapt and learn ensures your project will be completed with precision and speed. Choose Darko for your next project and experience seamless development from start to finish.
Previously at
View profile
Lana Ilic
Fullstack Developer
JavaScript TypeScript React Node.js Next.js NestJS Tailwind CSS Website E-commerce Front-end Vue.js
Available immediately
Seniority verified on Feb 28, 2025
Lana is a vetted full-stack developer with over 3 years of experience in international projects, specializing in custom integrations, software features, and marketing web pages. Her strong teamwork skills and advanced English make her a valuable addition to any development team.
Previously at
View profile
Ivana Jovic
Frontend Developer
JavaScript Vanilla JS React Next.js Node.js Gatsby Tailwind CSS TypeScript Jamstack Web Website Offshore Front-end
Available immediately
Meet Ivana – a skilled web page solutions expert with a Master's Degree in Engineering and a strong commitment to client success. Having worked on diverse projects at FatCat Coders, she’s the perfect addition to elevate your team. Looking for a web page master? Ivana is ready to help!
Previously at
View profile