Basic debugging - Introduction | JavaScript Foundations: Your First Interactive Web Page - Web Development (Professional Practice)

2 weeks ago This final project makes your portfolio dynamic. You will learn to host your project data online as a live API endpoint using a GitHub Gist, then use fetch to load this data and dynamically generate your project cards.
SPONSORED
Get Personalized Tutoring Now
Get Personalized Tutoring Now
Struggling with a tough concept or looking to advance your skills? Our expert tutors offer one-to-one guidance tailored to your unique needs. Get instant support, clear explanations, and practical strategies to master even the most challenging subjects. With flexible scheduling and customized learning plans, success is just a session away. Book your personalized tutoring today and start achieving your academic goals!

Struggling with a tough concept or looking to advance your skills? Our expert tutors offer one-to-one guidance tailored to your unique needs. Get instant support, clear explanations, and practical strategies to master even the most challenging subjects. With flexible scheduling and customized learning plans, success is just a session away. Book your personalized tutoring today and start achieving your academic goals!

1-3. Your JavaScript workflow
You're currently viewing lesson 1-4 of JavaScript Foundations: Your First Interactive Web Page - Web Development (Professional Practice) course.
Enroll for the entire course below for full access to all videos, notes, quizzes, exercises, projects, a chat room to interact with the instructor and other learners across the world, and lots more.
JavaScript Foundations: Your First Interactive Web Page - Web Development (Professional Practice)
JavaScript Foundations: Your First Interactive Web Page - Web Development (Professional Practice)
A website without JavaScript is a static document. This course provides the foundational skills to make your webpages interactive. We cover the core language syntax, how to manipulate page elements in response to user events, and how to work with data structures and asynchronous code. You will apply these concepts directly to the portfolio project built in our CSS course, transforming it into a dynamic application. JavaScript is the engine of the modern web, and proficiency in it is a core requirement for any web development role. This course is project-driven, focusing on adding real functionality to a live website. The skills you learn are directly applicable to building dynamic user interfaces, whether for personal projects, client work, or as part of a professional development team. You will master core JavaScript syntax, including variables, functions, and conditional logic. Key skills include debugging in the browser, manipulating the DOM to change content, and handling user events. You will also learn to manage data with arrays and objects, fetch data from an API, store information with `localStorage`, and deploy your final, interactive project. This programme is for anyone with a solid grasp of HTML and CSS. It is the essential next step for aspiring front-end developers, designers wanting to build interactive prototypes, and backend developers needing to understand client-side code.

A website without JavaScript is a static document. This course provides the foundational skills to make your webpages interactive. We cover the core language syntax, how to manipulate page elements in response to user events, and how to work with data structures and asynchronous code. You will apply these concepts directly to the portfolio project built in our CSS course, transforming it into a dynamic application. JavaScript is the engine of the modern web, and proficiency in it is a core requirement for any web development role. This course is project-driven, focusing on adding real functionality to a live website. The skills you learn are directly applicable to building dynamic user interfaces, whether for personal projects, client work, or as part of a professional development team. You will master core JavaScript syntax, including variables, functions, and conditional logic. Key skills include debugging in the browser, manipulating the DOM to change content, and handling user events. You will also learn to manage data with arrays and objects, fetch data from an API, store information with `localStorage`, and deploy your final, interactive project. This programme is for anyone with a solid grasp of HTML and CSS. It is the essential next step for aspiring front-end developers, designers wanting to build interactive prototypes, and backend developers needing to understand client-side code.

This course is also part of the following learning track. You can join the track to gain comprehensive knowledge across related courses.
[Beginner] Modern Web Development Foundations - From Zero to Your First Interactive Website
[Beginner] Modern Web Development Foundations - From Zero to Your First Interactive Website
This is the direct path to building professional-grade web development skills. This learning track is a comprehensive programme covering the entire modern front-end stack, engineered to take you from zero knowledge to possessing a practical, portfolio-worthy skillset. It moves logically from foundational web concepts and professional tools, through structuring content with HTML5, styling with modern CSS, and finally, building dynamic user experiences with JavaScript. This programme is built for individuals starting a career in technology with no prior coding experience. It is the essential curriculum for aspiring front-end developers, full-stack engineers, and computer science students. It also serves professionals in adjacent roles - such as UI/UX designers and product managers - who require a practical understanding of web technologies to excel in their careers. By the end of this learning track, you will have the ability to build, style, and launch a fully interactive, responsive website from a blank file. You will master the professional developer's toolkit - Git, the command line, and an AI-assisted editor - and write clean, semantic code. This track provides the foundational project and technical skills to confidently begin your career path toward junior developer roles and to build robust personal or business projects.

This is the direct path to building professional-grade web development skills. This learning track is a comprehensive programme covering the entire modern front-end stack, engineered to take you from zero knowledge to possessing a practical, portfolio-worthy skillset. It moves logically from foundational web concepts and professional tools, through structuring content with HTML5, styling with modern CSS, and finally, building dynamic user experiences with JavaScript. This programme is built for individuals starting a career in technology with no prior coding experience. It is the essential curriculum for aspiring front-end developers, full-stack engineers, and computer science students. It also serves professionals in adjacent roles - such as UI/UX designers and product managers - who require a practical understanding of web technologies to excel in their careers. By the end of this learning track, you will have the ability to build, style, and launch a fully interactive, responsive website from a blank file. You will master the professional developer's toolkit - Git, the command line, and an AI-assisted editor - and write clean, semantic code. This track provides the foundational project and technical skills to confidently begin your career path toward junior developer roles and to build robust personal or business projects.

Other chapters of the JavaScript Foundations: Your First Interactive Web Page - Web Development (Professional Practice) course:
1. Introduction
2. Core Fundamentals
3. DOM Interactions
4. Arrays and Objects
5. Asynchronous JavaScript
6. Conclusion