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JavaScript Essentials

Course Description

Description

JavaScript powers over 95% of websites — making it the most essential programming language for web development. This self-paced course is designed to take you from zero to confident in core JavaScript concepts, syntax, and logic.

You’ll learn by writing real code, building interactive components, and practicing hands-on exercises. Updated for 2025, this course includes modern JavaScript (ES6+), DOM manipulation, debugging skills, and mini-projects like calculators, quizzes, and form validation.

Perfect for anyone starting out in web development, full stack programming, or frontend design.

What You Will Learn

  • Understand JavaScript syntax, keywords, and best practices

  • Work with variables, data types, and operators

  • Build logic using conditional statements and loops

  • Write reusable code using functions and arrow functions

  • Understand scopes, hoisting, closures, and execution context

  • Manipulate the DOM to build dynamic web content

  • Handle user events (clicks, keypress, submit, etc.)

  • Debug using browser tools and handle common errors

  • Work with arrays, objects, and JSON

  • Make API calls using fetch() and understand async JavaScript

  • Build real-world mini projects using HTML + JS

Course Curriculum

  • Introduction to JavaScript

    • What is JavaScript?

    • How it works in the browser

    • Embedding JS in HTML (inline, internal, external)

  • Variables, Data Types & Operators

    • let, const, var

    • Strings, numbers, booleans, null, undefined

    • Arithmetic, assignment, comparison, logical operators

  • Control Flow & Loops

    • if, else, switch

    • for, while, do...while

    • break, continue

  • Functions & Scope

    • Function declarations and expressions

    • Arrow functions

    • Scope, hoisting, closures

  • Arrays & Objects

    • Creating and accessing arrays and objects

    • Array methods: push, pop, map, filter, reduce

    • Object manipulation and nesting

  • DOM Manipulation

    • Selecting elements (getElementById, querySelector)

    • Changing content, attributes, styles

    • Creating elements dynamically

    • Event listeners

  • Forms & Validation

    • Reading form input

    • Validating fields

    • Preventing default behavior

  • Asynchronous JavaScript

    • setTimeout, setInterval

    • Callbacks and Promises

    • fetch() API and working with JSON

  • Debugging & Best Practices

    • Using browser dev tools

    • Common JS errors

    • Clean code and naming conventions

  • Final Mini Project

    • Build a working project (e.g., weather app, to-do list, quiz app)

    • Submit code on GitHub

    • Get instructor feedback

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Chronolearn

Developer

I am a web developer with a vast array of knowledge in many different front end and back end languages, responsive frameworks, databases, and best code practices

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This Course Fee:

₹2,999.00

₹4,000.00
Course includes:
  • img Level
      Beginner Intermediate
  • img Duration 9h
  • img Passing Marks 75
  • img Exam Duration 1h 30m
  • img Certifications Yes
  • img Language
      English German Arabic French Spanish
  • img Access 90 days
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