René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is a function in JavaScript?","acceptedAnswer":{"@type":"Answer","text":"A function is a reusable block of code that performs a specific task. Functions can accept inputs (parameters), process data, and return outputs. They help organize code and avoid repetition."}},{"@type":"Question","name":"What is the difference between function declaration and expression?","acceptedAnswer":{"@type":"Answer","text":"Function declarations are hoisted (can be called before defined), while function expressions are not. Declarations use \"function name()\" syntax, expressions assign a function to a variable."}},{"@type":"Question","name":"What are arrow functions in JavaScript?","acceptedAnswer":{"@type":"Answer","text":"Arrow functions (=>) are a shorter syntax for writing functions. They do not have their own \"this\" binding, making them ideal for callbacks. Example: const add = (a, b) => a + b;"}},{"@type":"Question","name":"What does the return statement do?","acceptedAnswer":{"@type":"Answer","text":"The return statement ends function execution and specifies a value to return to the caller. Without return, functions return undefined. You can only return one value (but it can be an object or array)."}}]}