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JavaScript JavaScript Quickstart Functions Write a Function

What is a parameter?

I need help

script.js
function add10() {
  var num="0";
}
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>

2 Answers

Steven Parker
Steven Parker
229,582 Points

A parameter is a placeholder for a value that will be given (known as "passing") to the function. Parameters have names like variables (such as "num" in this case), and are put between the parentheses after the function name on the first line. When you have more than one (not the case here), the names are separated by commas.

The variable name that goes in between the parenthesis. In this case they want you to put 'num' in between the parenthesis.