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Difference between TypeScript and JavaScript
Benefits
JavaScript
- Simple to learn and widely used in web development
- No compilation step; runs directly in browsers or node.js.
- Supported by an extensive ecosystem of libraries and frameworks.
- Offers flexibility with dynamic typing, enabling rapid development.
TypeScript
- Offers static typing, improving code reliability and reducing runtime errors.
- Includes advanced features like interfaces, generics, and decorators for scalable development.
- Better tooling support with enhanced code navigation, auto - completion, and refactoring.
- Helps maintain large codebases, making it easier for teams to collaborate.
When to Use
JavaScript
- For small-scale projects or prototypes
- When working with legacy codebases or teams already familiar with JavaScript.
- For dynamic, client-side applications requiring minimal configuration.
TypeScript
- For large-scale or enterprise projects where scalability and maintainability are priorities.
- When working in teams where type safety ensures fewer bugs and smoother collaboration.
- For applications requiring a strong focus on long-term code quality and readability.
Performance Comparison
JavaScript
- Faster to write and execute because it does not require compilation.
- Can be slower at runtime due to potential type-related errors and debugging overhead.
TypeScript
- Development is slightly slower due to the need for type annotations and compilation.
- Results in more reliable and optimized runtime performance due to fewer bugs and better code structure.