His YouTube channel serves as a "greatest hits" album. He uploads the first 1–2 hours of a paid course, or specific standalone tutorials on complex topics, to YouTube.

Note: Mosh occasionally retires older videos as the language evolves, but the core concepts he teaches (loops, OOP, Async) remain relevant and are usually available.

// 1. Use let (block-scoped) for (let i = 0; i < 3; i++) { setTimeout(() => console.log(i), 100); } // Output: 0, 1, 2

Mosh has a fantastic introduction to JavaScript. If you have never written a line of code, this is where you start.

A significant portion of learners looking for Mosh’s JavaScript course are actually looking for backend development.

A free video that simplifies complex concepts like objects, prototypes, and inheritance for those moving toward intermediate skills.