Jun 27, 2013 · Do I have to return something in javascript function? The short answer is no. The real answer is yes: the JS engine has to be notified that some function has finished its …

Jun 3, 2011 · No; Javascript functions are not required to return a value. If you call a function that doesn't return a value, you'll get undefined as the return value.

The return statement stops the execution of a function and returns a value. Read our JavaScript Tutorial to learn all you need to know about functions. Start with the introduction chapter about …

Mar 13, 2025 · In a plain function, the call to that function evaluates to the return value. In an async function, the produced promise is resolved with the returned value. In a generator …

Dec 27, 2024 · All JavaScript functions return something. If an explicit return is omitted, undefined is returned automatically instead. When a function returns, its instance is wiped out from …

Feb 7, 2025 · The return statement in JavaScript is used to end the execution of a function and return a value to the caller. It is used to control function behaviour and optimise code …

Feb 17, 2025 · The return statement in JavaScript is used to end a function execution and send a value back to where the function was called. It allows the function to provide useful results, like …

Functions in JavaScript don't always need a return statement; it's used when a function must send a result back. A return statement ends the function's execution and provides the calling …

Mar 31, 2024 · Use return to specify the value that the function should produce as a final result. When the interpreter reaches a return statement, the function that contains that statement …

Jan 28, 2023 · No, a return statement is not necessary at the end of a void function (sorry for the C-terms there). If you want to exit a function early, however (say if a specific condition wasn't …