Course Details

Elevo Labs
Full-Stack Web Development

Vanilla JavaScript: The Absolute Beginner's Guide

Amit Chandrakar

Instructor: Amit Chandrakar

Created: 16 June, 2025
Updated: 16 June, 2025

Course Description

Embark on your programming journey with this comprehensive guide to Vanilla JavaScript. Designed for absolute beginners, this course lays a rock-solid foundation in the core language concepts, enabling you to bring interactivity and dynamic features to your web pages without relying on complex frameworks.

You will start from the very basics, understanding JavaScript's syntax, operators, and how to define variables and data types. We'll then move into essential control flow statements like `if-else` and loops to build logical programs. A significant portion of the course focuses on JavaScript's interaction with the web page through the Document Object Model (DOM), teaching you how to select elements, modify content, and respond to user actions using JavaScript Events.

Beyond the DOM, you'll explore built-in JavaScript objects like Arrays, Strings, Dates, and Math, learning practical methods for data manipulation. The course also covers crucial topics like JSON for data exchange, form validation, managing cookies, and fundamental exception handling to write robust code. Finally, we'll delve into the Browser Object Model (BOM) to understand how JavaScript interacts with the browser window itself.

What You'll Learn:

  • JavaScript basics: syntax, operators, variables, and data types.
  • Control flow: `if-else`, `switch`, and various loop types (`for`, `while`, `for...of`, `for...in`).
  • Functions: creation, parameters, and default values.
  • Working with JavaScript objects: Arrays, Strings, Dates, Math, Numbers, and Booleans.
  • In-depth Document Object Model (DOM) manipulation.
  • JavaScript JSON for data serialization and deserialization.
  • Client-side form validation and email validation.
  • Managing browser cookies and their attributes.
  • Fundamental exception handling using `try-catch`.
  • Handling user interactions with JavaScript Events like `click`, `onload`, `resize`.
  • Understanding the Browser Object Model (BOM) including Window, History, Navigator, and Screen objects.

Who Is This Course For?

This course is specifically designed for absolute beginners with no prior programming or JavaScript experience. It's ideal for anyone looking to start their front-end web development journey, understand how dynamic web pages work, or gain a strong foundational knowledge of JavaScript before diving into frameworks.

Prerequisites:

  • Complete Beginner Friendly: No prior programming or JavaScript experience is required. This course starts from scratch!
  • Basic HTML & CSS (Recommended): While not strictly mandatory, a foundational understanding of HTML structure and basic CSS will help you visualize and understand JavaScript's impact on web pages.
  • A Computer/Laptop: You'll need a working computer (Windows, macOS, or Linux) to write and execute JavaScript code.
  • A Text Editor/IDE: Any code editor (like VS Code) is suitable.
  • A Willingness to Learn: Your enthusiasm and commitment are the most important prerequisites!

Includes multiple practical exercises, mini-projects, and a certificate upon completion. Available in English and Hindi.

1. Introduction to JavaScript: What It Is and How It Powers the Web
15min
2. A Brief History and Key Features of JavaScript
10min
3. JavaScript Versions and ECMAScript Standards
10min
4. Setting Up Your Environment: Browser Console and External JS Files
20min
5. Your First JavaScript Program: 'Hello World!'
10min
6. JavaScript Syntax Rules and Best Practices
15min
7. JavaScript Comments: Single-line and Multi-line
8min
8. Recap & Practical Task: Write a Basic 'Welcome Message' Script
20min

9. Understanding Variables: Declaring and Assigning Values
20min
10. JavaScript Data Types: String, Number, Boolean, Null, Undefined, Symbol, BigInt
30min
11. The `var` Keyword: Scope and Hoisting
25min
12. The `let` Keyword: Block Scope and Reassignment
20min
13. The `const` Keyword: Block Scope and Immutability
20min
14. Differences Between `var`, `let`, and `const` (Critical Understanding)
25min
15. Global vs. Local Variables and Scope
20min
16. Type Conversion and Coercion (Implicit vs. Explicit)
15min
17. Recap & Practical Task: Declare Variables for a User Profile
30min

18. Arithmetic Operators (`+`, `-`, `*`, `/`, `%`, `**`, `++`, `--`)
15min
19. Assignment Operators (`=`, `+=`, `-=`, etc.)
10min
20. Comparison Operators (`==`, `===`, `!=`, `!==`, `>`, `<`, `>=`, `<=`)
20min
21. Logical Operators (`&&`, `||`, `!`)
15min
22. Conditional Statements: `if`, `else if`, `else`
20min
23. The `switch` Statement
20min
24. Introduction to Loops: Why We Use Them
10min
25. The `for` Loop
25min
26. The `while` Loop
20min
27. The `do-while` Loop
15min
28. The `for...of` Loop (Iterating over Iterable Objects)
20min
29. The `for...in` Loop (Iterating over Object Properties)
15min
30. The `return` Statement (Exiting Functions)
10min
31. Recap & Practical Task: Create a Simple 'Guess the Number' Game
40min

32. Introduction to Functions: Defining and Calling
20min
33. Function Parameters and Arguments
20min
34. Default Parameters (ES6)
15min
35. Function Expressions vs. Function Declarations
20min
36. Arrow Functions (ES6 Basics)
20min
37. Scope Revisited: Functions and Variables
15min
38. Recap & Practical Task: Create Functions for Common Calculations
30min

39. Introduction to JavaScript Objects (Key-Value Pairs)
20min
40. Accessing Object Properties and Methods
15min
41. JavaScript Arrays: Creating and Accessing Elements
25min
42. Common JavaScript Array Methods (`push`, `pop`, `shift`, `unshift`, `splice`, `slice`, `indexOf`, `includes`)
40min
43. Iterating Arrays with `forEach` and `map`
20min
44. JavaScript Strings: Properties and Basic Methods (`length`, `toUpperCase`, `toLowerCase`, `trim`)
25min
45. Advanced String Methods (`substring`, `slice`, `replace`, `split`, `startsWith`, `endsWith`)
30min
46. JavaScript Date Object: Creating and Formatting Dates
25min
47. JavaScript Math Object: Common Mathematical Operations
20min
48. JavaScript Number Object: Methods for Numbers
15min
49. JavaScript Boolean Object: True/False Logic
10min
50. Recap & Practical Task: Build a Simple Shopping Cart Array
50min

51. Introduction to the DOM: What It Is and How JavaScript Interacts with HTML
20min
52. Selecting Elements: `document.getElementById()`
15min
53. Selecting Elements: `document.getElementsByClassName()`
15min
54. Selecting Elements: `document.getElementsByName()`
15min
55. Selecting Elements: `document.getElementsByTagName()`
15min
56. Modifying Content: `innerHTML` Property
20min
57. Modifying Text: `innerText` Property
15min
58. Modifying Attributes (`setAttribute`, `removeAttribute`, `getAttribute`)
20min
59. Modifying CSS Styles with JavaScript (`.style` Property)
20min
60. Adding and Removing CSS Classes (`.classList`)
20min
61. Creating and Appending New Elements (`createElement`, `appendChild`)
25min
62. Removing Elements (`removeChild`)
15min
63. Recap & Practical Task: Build a Simple Light/Dark Mode Toggle
40min

64. Introduction to JSON (JavaScript Object Notation): What it is and Why it's Used
20min
65. JSON Syntax Rules
15min
66. Converting JSON Strings to JavaScript Objects: `JSON.parse()`
25min
67. Converting JavaScript Objects to JSON Strings: `JSON.stringify()`
25min
68. Practical Use Cases of JSON (e.g., Data Exchange with Servers)
20min
69. Recap & Practical Task: Work with Sample JSON Data
35min

70. Introduction to JavaScript Form Validation: Why It's Important
20min
71. Basic Form Validation Principles (Empty Fields, Length Checks)
25min
72. Validating Required Fields
20min
73. JavaScript Email Validation (Basic Pattern Checking)
25min
74. Validating Numbers and Other Input Types
20min
75. Displaying Validation Messages to Users
20min
76. Recap & Practical Task: Build a Contact Form with JavaScript Validation
45min

77. Introduction to JavaScript Cookies: What They Are and How They Work
20min
78. Setting and Getting Cookies (`document.cookie`)
25min
79. Cookie Attributes: `expires`, `path`, `domain`, `secure`, `HttpOnly` (Overview)
25min
80. Working with Cookies that have Multiple Names/Values
20min
81. Deleting Cookies
15min
82. Recap & Practical Task: Implement a 'Remember Me' Feature Using Cookies
40min

83. Introduction to Exception Handling: Common Errors and Debugging
20min
84. The `try...catch` Statement for Handling Errors Gracefully
25min
85. The `finally` Block
20min
86. Throwing Custom Errors (`throw` statement)
15min
87. Error Objects (Name, Message, Stack)
15min
88. Recap & Practical Task: Add Error Handling to a Data Processing Script
30min

89. Introduction to JavaScript Events: Making Your Pages Interactive
20min
90. Event Handlers vs. `addEventListener()`
25min
91. The `onclick` Event
15min
92. The `dblclick` Event
10min
93. Mouse Events: `mouseover`, `mouseout`, `mousedown`, `mouseup`, `mousemove`
25min
94. Keyboard Events: `keydown`, `keyup`, `keypress`
20min
95. Form Events: `submit`, `change`, `focus`, `blur`
20min
96. Window Load Events: `onload`
15min
97. Window Resize Events: `onresize`
10min
98. Event Object Properties (`target`, `type`, `clientX`, `clientY`, etc.)
20min
99. Recap & Practical Task: Build an Interactive Image Viewer
45min

100. Introduction to the BOM: Interacting with the Browser Window
15min
101. The Window Object: Properties and Methods (`alert`, `confirm`, `prompt`, `setTimeout`, `setInterval`)
30min
102. The History Object: Navigating Browser History (`back`, `forward`, `go`)
20min
103. The Navigator Object: Browser Information (`userAgent`, `platform`)
15min
104. The Screen Object: Screen Dimensions and Properties
15min
105. `location` Object: URL Information and Redirection
20min
106. Popup Windows (`window.open()`, `window.close()`)
15min
107. Recap & Practical Task: Create a Simple Browser Information Tool
35min

108. Project Overview: Planning the Calculator Interface and Logic
40min
109. Setting up the HTML Structure for the Calculator Interface
1hr
110. Implementing Basic Arithmetic Operations with JavaScript Functions
1hr 30min
111. Handling User Input and Display Updates with DOM Manipulation
1hr
112. Adding Event Listeners for Button Clicks and Keyboard Input
1hr
113. Incorporating Basic Error Handling (e.g., Division by Zero)
45min
114. Enhancing User Experience (e.g., Clear Button, Decimal Points)
45min
115. Final Project Review and Submission
1hr

Instructor

Amit Chandrakar
Amit Chandrakar

Senior Full Stack Developer & Instructor

10 Courses

View Details
Elevo Labs

Courses Includes:

  • Price : ₹3000
  • Instructor : Jane Smith
  • Durations : 2 Weeks
  • Modules : 13
  • Language : English, Hindi
  • Level : Beginner
  • Certifications : Yes
  • Get Curriculum: Download

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