Explain Type Annotations in TypeScript

Instruction: Provide a brief explanation of what type annotations are and their significance in TypeScript.

Context: This question assesses the candidate's understanding of TypeScript's fundamental feature, type annotations, and their ability to explain how it enhances code quality and maintainability.

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A type annotation explicitly describes the static contract of a variable, parameter, property or return value. TypeScript checks compatible uses during type checking; annotations do not add runtime validators.

function greeting(name: string): string { return `Hello, ${name.toUpperCase()}`; } const message: string = greeting("Ada"); console.assert(message === "Hello, ADA");...

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