Home / JavaScript / Mastering JavaScript: A Free Online CourseMastering JavaScript: A Free Online Course 71 views Less than a minute 0 This online course is organized into individual articles, each dedicated to the topics of Mastering JavaScript. Mastering JavaScript: Exploring the Differences Between Traditional Methods and Arrow Functions Mastering JavaScript: Exploring Concise Body Arrow Function Mastering JavaScript: Custom Variable Naming Through Destructuring Mastering JavaScript: Creating A Shallow Copy Mastering JavaScript: Creating Deep Copies of Objects and Arrays Mastering JavaScript: Why Spread Syntax Doesn’t Create a Deep Copy? Mastering JavaScript: Shuffled Arrays