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TypeScript and JavaScript are closely related, with TypeScript being a superset of JavaScript. While both are widely used in web development, they cater to different needs and project scales.
Key Differences
TypeScript introduces static typing, which allows developers to define variable types at compile time. This helps catch errors early, unlike JavaScript, which is dynamically typed and checks types only at runtime. For example:
JavaScript Example:
function greet(name) {return "Hello, " + name;}console.log(greet("John")); // Works fineconsole.log(greet(123)); // No error, but unintended behaviorGekopieerd.āKopiërenTypeScript Example:
function greet(name: string): string {return "Hello, " + name;}console.log(greet("John")); // Works fineconsole.log(greet(123)); // Compile-time errorGekopieerd.āKopiërenIn TypeScript, the second call would throw an error during compilation, preventing runtime issues.
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