Master Your Frontend Interview: The Ultimate Happy Rawat JavaScript Interview Questions Guide
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The mechanism that enables asynchronous JavaScript, managing the call stack and callback queue. Keyword Behavior?
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== is the abstract equality operator, which performs type coercion before comparing. === is the strict equality operator, which compares both the value and the type without coercion. For example, 5 == "5" is true , but 5 === "5" is false . Q2: What is the difference between var , let , and const ?
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: Returns a new function instance with the bound context, allowing execution at a later time. Final Preparation Checklist
: Data privacy (emulating private methods) and creating factory functions. Data Types and Implicit Coercion
Its value depends on how the function is called (e.g., in a method, a regular function, or as a constructor).