Use defined functions part 4

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User-Defined Functions

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Calling Functions

Once the function is defined, JavaScript allows you to call it as many times as you want to.

function myFunction() {
alert("Alert box!");
}

myFunction();
//"Alert box!"

// some other code

myFunction();
//"Alert box!"Try It Yourself

You can also call a function using this syntax: myFunction.call(). The difference is that when calling in this way, you're passing the 'this' keyword to a function. You'll learn about it later.

How many times can the function be executed inside a web page?

As many as needed

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