The return statement seems to be coming up blank

Question

The return statement seems to be coming up blank

Why is the return statement not producing any output or errors?

I've tested it on Chrome, Firefox, and repl.it.

Here's the code snippet in question:

//Function that returns the product of two numbers
    function multiply(num1, num2){
     return num1 * num2;
    }
    //Calling the function
    multiply(10,20 );

No outputs or errors are observed.

javascript

Answer 1

Answer №1

When you make a return, it signifies that something is being returned. At the moment, you are only invoking multiply(), which does return a value but is not assigned to anything.

If you implement the following:

var result = multiply(5, 10)

the variable result will hold the return value from the multiply function.

Answer 2

When you make a return, it signifies that something is being returned. At the moment, you are only invoking multiply(), which does return a value but is not assigned to anything.

If you implement the following:

var result = multiply(5, 10)

the variable result will hold the return value from the multiply function.

Answer 3

Answer №2

When you run the code, you may not see any output because there is no specific action that generates an output. The absence of errors indicates that your code is error-free. It is common for functions to return values without directly displaying them as output.

Returning a value from a function simply passes it back to the calling code for further use, such as in calculations or other operations:

function multiply(num1, num2){
     return num1 * num2;
}

// Outputting the return value:
console.log(multiply(2, 3));

// Using it in another calculation...
const x = multiply(2, 3) + 4;
// We can choose to output the result if desired:
console.log(x);

However, there are scenarios where the function's result is never displayed as output. For example, utilizing document.getElementById in an event handler setup does not produce any visible output:

let clickCounter = 0;

document.getElementById("btn").addEventListener("click", function() {
    ++clickCounter;
});

<input type="button" value="Click Me" id="btn">

Answer 4

When you run the code, you may not see any output because there is no specific action that generates an output. The absence of errors indicates that your code is error-free. It is common for functions to return values without directly displaying them as output.

Returning a value from a function simply passes it back to the calling code for further use, such as in calculations or other operations:

function multiply(num1, num2){
     return num1 * num2;
}

// Outputting the return value:
console.log(multiply(2, 3));

// Using it in another calculation...
const x = multiply(2, 3) + 4;
// We can choose to output the result if desired:
console.log(x);

However, there are scenarios where the function's result is never displayed as output. For example, utilizing document.getElementById in an event handler setup does not produce any visible output:

let clickCounter = 0;

document.getElementById("btn").addEventListener("click", function() {
    ++clickCounter;
});

<input type="button" value="Click Me" id="btn">

Answer 5

Answer №3

It seems that the issue might lie in not utilizing the return value of your function. In order for the value to be visible, it needs to be returned and then used in some way. Here are a few ways you can make use of the return value:

Passing it as a parameter in another method call (e.g., logging it to the console):

console.log(multiply(10,20));

Assigning it to a variable:

var result = multiply(10,20);

Incorporating it into another piece of logic:

document.getElementById("equation").textContent = "10 x 20 = " + multiply(10,20);

If you fail to capture and utilize the return value of a method, it will not be displayed or utilized anywhere.

Answer 6

It seems that the issue might lie in not utilizing the return value of your function. In order for the value to be visible, it needs to be returned and then used in some way. Here are a few ways you can make use of the return value:

Passing it as a parameter in another method call (e.g., logging it to the console):

console.log(multiply(10,20));

Assigning it to a variable:

var result = multiply(10,20);

Incorporating it into another piece of logic:

document.getElementById("equation").textContent = "10 x 20 = " + multiply(10,20);

If you fail to capture and utilize the return value of a method, it will not be displayed or utilized anywhere.

The return statement seems to be coming up blank

Answer №1

Answer №2

Answer №3

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