What is the difference between 'interface' and 'type' in TypeScript?

Description : 'interface' and 'type' have some overlapping features but differ in capabilities.

Answer :

In TypeScript, both 'interface' and 'type' are used to define types, but they have some differences. 'interface' is used for defining the shape of objects and supports declaration merging, allowing multiple 'interface' declarations to be combined. 'type' can define more complex types including unions, intersections, and mapped types but does not support declaration merging. Use 'interface' when defining object shapes and 'type' for more complex type constructs.

In TypeScript, both 'interface' and 'type' are used to define types, but they have some differences. 'interface' is used for defining the shape of objects and supports declaration merging, allowing multiple 'interface' declarations to be combined. 'type' can define more complex types including unions, intersections, and mapped types but does not support declaration merging. Use 'interface' when defining object shapes and 'type' for more complex type constructs.

Category : Typescript

Created Date : 9/6/2024

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What is TypeScript?

What is TypeScript?

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2024-09-09 last updatedFreeTypescript

TypeScript is a statically typed language that builds on JavaScript by adding optional types. It allows developers to catch errors at compile time rather than runtime, which can help improve code quality and readability. TypeScript code is transpiled to JavaScript, making it compatible with existing JavaScript codebases and environments.

TypeScript is a statically typed language that builds on JavaScript by adding optional types. It allows developers to catch errors at compile time rather than runtime, which can help improve code quality and readability. TypeScript code is transpiled to JavaScript, making it compatible with existing JavaScript codebases and environments.

TypeScript is a statically typed language that builds on JavaScript by adding optional types. It allows developers to catch errors at compile time rather than runtime, which can help improve code quality and readability. TypeScript code is transpiled to JavaScript, making it compatible with existing JavaScript codebases and environments.

TypeScript is a statically typed language that builds on JavaScript by adding optional types. It allows developers to catch errors at compile time rather than runtime, which can help improve code quality and readability. TypeScript code is transpiled to JavaScript, making it compatible with existing JavaScript codebases and environments.