Published onMay 1, 2024JavaScript Concepts 'this' Keyword, Prototypes, Closures, Async-style Code, Promises, Timersthis-KeywordPrototypesClosuresAsync-style-CodeAsyncProgrammingPromisesTimerssetTimeoutsetIntervalJavascriptInterviewJavaScript Concepts such as the 'this' keyword, prototypes, closures, async-style code, promises, and timers are fundamental for understanding JavaScript's behavior, enabling efficient and dynamic web development.