What is JavaScript?
- HTML is like the structure/bone of our body; JavaScript is like our behavior.
- English
- https://developer.mozilla.org/en-US/docs/Web/JavaScript
- https://www.w3schools.com/js/default.asp
How do we usually write JavaScript language?
Example
<script type="text/javascript">
alert("Always call your girlfriend 'young lady' means...");
alert("You are good at safing your relationship.");
</script>
- Add a tag
<script></script>
and an attribute to indicate that the language we’re writing is JavaScript. - A command, alert, and its string “Always call your girlfriend ‘young lady’ means…”
- The string can be multiple, but don’t forget to add a semicolon in the end of it.
Final Design


<!DOCTYPE html>
<html>
<head>
<title>JavaScript</title>
<script type="text/javascript">
alert("Always call your girlfriend 'young lady' means...");
alert("You are good at safing your relationship.");
</script>
</head>
</html>
Music of Today: Butterflies by Johnny Stimson
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