Web Reference: Learn how to describe common JavaScript values like strings, numbers, booleans, arrays, and objects in TypeScript. See examples of type annotations, inference, and contextual typing for variables, functions, and parameters. Jan 21, 2025 · In TypeScript, a data type defines the kind of values a variable can hold, ensuring type safety and enhancing code clarity. Primitive Types: Basic types like number, string, boolean, null, undefined, and symbol. Object Types: Complex structures including arrays, classes, interfaces, and functions. Data types specify the kind of data that variables can hold. In this tutorial, you will learn about TypeScript data types with the help of examples.
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