Learn JavaScript strings by creating hello and world, then joining them, and explore length, search, substring, index, and text methods such as toUpperCase, split, and replace.

Use a JavaScript course checklist to guide your learning and navigate the curriculum, ensuring you complete essential activities.

Explore the JavaScript math object, using constants like pi and sqrt, and methods for max, min, rounding (round, floor, ceil), and random numbers to perform geometry and basic math tasks.

Explore the JavaScript Date object, create and format dates with new Date(), extract and set year, month, date, and time, and implement leading-zero formatting for clean, calendar-ready strings.

Master the use of timers in JavaScript with setTimeout and setInterval to trigger single or repeating actions, such as changing the background color from a color array.