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Javascript:
From Script to Superpower
Learning Outcome
5
Write simple JavaScript logic for web pages
4
Apply operators and control statements
3
Identify and use basic data types
2
Declare and use variables in JavaScript
1
Explain what JavaScript is and where it is used
Let's Discover What You Will Learn Today!
1
JavaScript Fundamentals & It's History
2
Different JavaScript Features
3
JavaScript Application and Usage
What is JavaScript?
JavaScript is a high-level, dynamic, untyped, and interpreted programming language that is widely used to create interactive effects within web browsers
It adds interactivity to a website
With javascript you can:
Handle complex functions
Check the user input
Make things animated
Where is Javascript applied in the real world ?
Web Development
Server-Side Development
Mobile App Development
Game Development
Embedded Systems
In web development, JavaScript is primarily used for client-side scripting, adding interactivity to web pages
But, it is also used on the server side with Node.js, showcasing its versatility as a general-purpose programming language
For web development, JavaScript primarily functions as a scripting language.
Where is Javascript used?
But How Can We Use JavaScript in Our Code?
<!DOCTYPE html>
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<h1>Hello, World!</h1>
<script>
document.write('This is JavaScript code running inside HTML!');
</script>
</body>
</html>
Inline JS
JavaScript can be used in two ways: inline JavaScript and external JavaScript
Inline JavaScript is placed directly in the HTML file and executed immediately when the browser loads the HTML content
document.write('This is JavaScript
code running from an external file!');
But How Can We Use JavaScript in Our Code?
<!DOCTYPE html>
<html>
<head>
<title>JavaScript Example</title>
<script src="script.js"></script>
</head>
<body>
<h1>Hello, World!</h1>
</body>
</html>
document.write('This is JavaScript
code running from an external file!');
index.html
script.js
External JavaScript is JavaScript code that is placed in a separate file with a .js extension and linked to the HTML document using the <script> tag with the src attribute
Let's Summarize
Summary
5
Control statements manage program flow
4
Operators perform calculations and comparisons
3
Data types define the kind of values used
2
Variables store and update data dynamically
1
JavaScript adds interactivity to web pages
Quiz
Which operator checks both value and type?
A. ==
B. =
C. ===
D. !=
Quiz-Answer
A. ==
B. =
C. ===
D. !=
Which operator checks both value and type?
Javascript: From Script to Superpower
By Content ITV
