Web Reference: JavaScript has three very commonly used primitives: string, number, and boolean. Each has a corresponding type in TypeScript. As you might expect, these are the same names you’d see if you used the JavaScript typeof operator on a value of those types: number is for numbers like 42. Learn the essential TypeScript types like string, number, boolean, array, tuple, enum, and more. Understand how these types improve code safety and clarity in TypeScript. JavaScript and TypeScript Primitives The most basic types in TypeScript are called primitives. These types form the building blocks of more complex types in your applications. TypeScript includes all JavaScript primitives plus additional type features. Here are the five primitive types you'll use most often:
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