Can `return` be used without a value?

Yes, in many programming languages, the return statement can be used without a value. This is typically done to exit a function early without returning any specific value.

For example, in JavaScript:

function example() {
    console.log("Doing something...");
    return; // Exits the function without returning a value
    console.log("This will not be executed.");
}

In this case, the return; statement exits the example function, and any code after it will not be executed.

In Go, you can also use return without a value in functions that do not return anything:

func doSomething() {
    // Some code here
    return // Exits the function without returning a value
}

Using return without a value is useful for controlling the flow of execution in your functions.