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JavaScript Functions

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Using Multiple return Statements

6:58 with Guil Hernandez

A function can have more than one return statement, but only ever run one based on a condition.

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Code Snippet

function noAlert() {
  return 5;
  alert("This won't appear");
}

noAlert();
alert("This will appear");

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    Until it reaches the end, or is instructed to stop with a return statement. 0:00
    A function can have more than one return statement. 0:03
    For instance, you might create a function that checks if a form field is empty. 0:06
    In this case, the function could return either true or false. 0:10
    The function might check the field, then return just the value true, 0:14
    if the form field hasn't been filled out by a user, and is empty. 0:18
    Or it could return false, if the user did enter something. 0:22
    You can then use that return value to perform another action, 0:25
    like display an error message, or prevent the form from being submitted. 0:29

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