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Learn how to make the browser talk back to you using console.log.
Attach JavaScript to real HTML elements and respond to user actions.
Use loops and patterns to grow simple programs into reusable, scalable logic.
The classic first program: log a message to the console.
Use loops to repeat code automatically and create patterns.
A built-in JavaScript object that provides access to the browser's debugging console.
A function (method) that outputs messages to the console. Think of it as "print" or "display".
Text data wrapped in quotes. This is what will be displayed in the console.
Marks the end of a statement. Like a period at the end of a sentence.
This single line tells JavaScript: "Take the text 'Hello, World!' and display it in the console."
Without quotes, JavaScript thinks "Hello" is a variable, not text.
JavaScript is case-sensitive and spelling matters!
Start and end quotes must match!
Functions need () to be called!
When you get an error, read the message carefully! It usually tells you exactly what went wrong and which line has the problem.