#12 JavaScript Introduction

2021 iThome 鐵人賽

DAY 12

Modern Web

Learn & Play JavaScript -- Entry-Level Front-End Web Development系列第 12 篇

13th鐵人賽 front-end frontend js javascript

Vida Lin

2021-09-12 08:50:15

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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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