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JavaScript JavaScript Functions Create Reusable Code with Functions Creating a Function

Posted by malcolm mowlam
malcolm mowlam
3,856 Points

how do you start creating a function in javascript

script.js 
functionsayhi();{}
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

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

You're close, but for two things:

  • you need a space between the word "function" and the function's name
  • you don't want a semicolon between the parentheses and the braces
malcolm mowlam
malcolm mowlam
3,856 Points

thank you very much

Fran ADP
Fran ADP
6,304 Points
Fran ADP
Fran ADP
6,304 Points

you type the variable function, type the function's name and put a pair of parenthesis.

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

Technically, "function" is a language keyword, not a variable. :wink:

jhon white
jhon white
20,006 Points
jhon white
jhon white
20,006 Points 
//You have many options in javascript to write a function:

// Function declarations:

function sayHi() {
   // whatever logic goes here!
}

//Function expressions:

const sayHi = function () {
   // whatever logic goes here!
}

//Arrow function

const sayHi = () => {
  // whatever logic goes here!
}

Good luck :)