What are the differences between static and dynamic typing in programming languages?

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What are the differences between static and dynamic typing in programming languages?

Asked on Dec 26, 2025

Answer

Static and dynamic typing are two different approaches to type checking in programming languages, affecting when and how type errors are detected. Static typing checks types at compile-time, ensuring type correctness before the code runs, while dynamic typing checks types at runtime, allowing more flexibility but potentially leading to runtime errors.

Example Concept: Static typing involves type checking at compile-time, which can catch type errors early and often leads to optimized performance due to known types. Languages like Java and C# use static typing. Dynamic typing, used by languages like Python and JavaScript, checks types at runtime, offering flexibility and ease of use but potentially leading to runtime errors if type mismatches occur.

Additional Comment:

Static typing can improve performance and reliability by catching errors early.
Dynamic typing offers flexibility and faster prototyping but may result in runtime errors.
Some languages like TypeScript add static typing to traditionally dynamic languages like JavaScript.
Choosing between static and dynamic typing often depends on the project's needs and developer preference.

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