1 “... with JavaScript syntax, you're ready to get started. Through the course of this book, author Stoyan Stefanov helps...”

2 “... familiar with basic JavaScript syntax, you're ready to get started. Once you understand how React works...”

3 “... with JavaScript quickly, and then serve as a handy reference once you start coding. Explore JavaScript syntax...”

4 Table of Contents: “...; Checking if a Variable Exists; Alternative if Syntax; Switch; Loops; While Loops; Do-while loops; For Loops...”

5 Table of Contents: “...; The if condition; The else clause; Code blocks; Checking if a variable exists; Alternative if syntax; Switch; Loops...”