This lesson introduces fundamental JavaScript concepts, including numbers, variables, and functions. It emphasizes hands-on learning by utilizing the browser's console for experimentation. Users will learn to input code and observe outputs, treating the console as an interactive tool for learning. The lesson also encourages self-research and problem-solving, essential skills for web developers. It aims to provide a solid foundation for creating applications in subsequent chapters, beginning with basic numeric expressions and calculations in JavaScript.
"To run JavaScript programs, we need a so-called JavaScript engine. Luckily, each web browser has a built-in JavaScript engine. One way of interacting with it is via the browser's console."
"We'll start with very simple JavaScript code: so-called numeric expressions - 'formulas' with numbers. For example, JavaScript can add numbers."
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