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JavaScript JavaScript Basics (Retired) Creating Reusable Code with Functions Passing an Argument to a Function

Todd Teetzel
Todd Teetzel
789 Points
Posted by Todd Teetzel
Todd Teetzel
789 Points

Stuck on calling a function and assigning a variable

"Here's a simple challenge: create a function named returnValue() that accepts a single argument, then returns that argument. This isn't a useful function, but we want to make sure you know how to create a function that can accept information when it is called."

function returnValue(string){ return(string) }

I'm confused about my next step. Please advise. Thank you!

script.js 
function returnValue(string){
 return(string)
}
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="script.js"></script>
</body>
</html>

3 Answers

Michael Mayer
Michael Mayer
6,161 Points
Michael Mayer
Michael Mayer
6,161 Points

The next step is to actually call the function, to do this, you simply state the function name with any parameters in parenthesis. Try this:

var echo = returnValue('this is how you call a function')

Million Asseghegn
Million Asseghegn
3,845 Points
Million Asseghegn
Million Asseghegn
3,845 Points

but you need to write this code after you close the bracelet.

Erik McClintock
Erik McClintock
45,783 Points
Erik McClintock
Erik McClintock
45,783 Points

Todd,

I'm not sure whether you're saying you're having difficulty with part 1 or 2 of this task, so here is some help for both portions:

Part 1)

You have some syntax issues here that you could fix. Take a look below.

This is what you have:

function returnValue(string){
 return(string)
}

This is what you want:

function returnValue(string){
 return string;
}

Note the removal of parenthesis at your return value, and the addition of a semi-colon to end the statement.

Part 2)

In part two of the task, they are asking you to pass in an actual string as the value for the argument of your function, such as the string 'my argument'. This could be any string value that you want, though, like 'My name is Todd'.

returnValue('my name is todd');

The above code calls the function that you previously defined, called "returnValue", and applies the string 'my name is todd' to your argument (which you defined as "string" when you created the function). Since the function simply returns whatever value is passed into it as your "string" argument, and we passed in the string 'my name is todd', this will simply return 'my name is todd' when we call it.

Hope this helps to make things a little clearer.

Erik

Todd Teetzel
Todd Teetzel
789 Points
Todd Teetzel
Todd Teetzel
789 Points

Awesome, thank you Erik and Michael. I finally got it. Much appreciated guys!