: Solving practical problems and tricky questions that often catch experienced developers off-guard, such as type coercion and floating-point precision issues. How to Get the Interview Resources (PDF & PPT)

Recursively copies all levels of an object. The original and copied objects share no references. Created via structuredClone(obj) or JSON.parse(JSON.stringify(obj)) . 5. Coding and Problem-Solving Practice

The - operator converts "2" into a number, resulting in 1 - 2 = -1 , then adds 3 to equal 2 . Machine Coding & Polyfills

Holds callbacks from operations like setTimeout and setInterval .