The developer console is used to log out debug statements and other information of a webpage. This is often used during development to test certain functionality and results. Normal web users will not see information in the developer console, but anyone can open the developer console. Due to anyone being able to open the developer console no sensitive information, such as password or API keys, should be logged to the console when a website is live on the internet.
var n = (25 * 5) / 5; debugger; console.log("Value: " + n);
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