Udemy — JavaScript Deep Dive: ES6+ Internals & Real-World Coding 2026-4

Description

Study JavaScript from core syntax through the runtime behaviour that explains how programs execute. The course starts with variables, data types, functions, loops and control flow, then develops modern JavaScript features such as arrow functions, destructuring, template literals, modules and classes. Promises and async/await introduce asynchronous programming alongside the language fundamentals.

The deeper sections examine execution contexts, scope, closures, hoisting, the this keyword and prototypes. The call stack, event loop and memory behaviour provide context for understanding unexpected results and debugging errors. Lessons connect these mechanisms with reusable code and programming patterns, giving learners a basis for explaining what their JavaScript code does rather than only memorizing syntax.

Intended audience: New JavaScript learners and developers revisiting the language's internal behaviour.

What you will learn

• Write functions, loops and conditional logic using JavaScript fundamentals.
• Apply modern syntax, modules, classes, promises and async/await.
• Explain scope, closures, hoisting, this and prototype behaviour.
• Use knowledge of the call stack and event loop when investigating errors.

Course specifications

Publisher

Udemy

Instructors

Medhat Gadallah

Language

English

Level

Beginner to Advanced

Duration

23 hours and 7 minutes

Lecture count

216

Subtitle

None

Quality

1080p

Edition

2026-4

Course topics

View course topics

Prerequisites

• Basic computer skills and access to a computer and internet connection.
• Prior JavaScript study is not required by the source prerequisites.

Introduction video

Download resources

Choose one edition and keep its parts together. Alternate providers are available when listed.

Size

1.4 GB

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