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let and const declarations are hoisted but . They reside in a "Temporal Dead Zone" (TDZ) until the execution reaches their declaration line.
If you are preparing for a frontend or full-stack JavaScript interview, chances are you have come across . He is a well-known YouTuber and educator in the Indian tech community, famous for his concise, concept-driven interview question series.
function throttle(func, limit) let inThrottle; return function(...args) const context = this; if (!inThrottle) func.apply(context, args); inThrottle = true; setTimeout(() => inThrottle = false, limit); ; Use code with caution. Deep Clone vs. Shallow Clone
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: Modern syntax that provides a shorter way to write functions and does not have its own this context. let and const declarations are hoisted but
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, though these are not always the latest or official versions. Sample High-Frequency Questions Common questions featured in his guides include:
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Transforming a function that takes multiple arguments into a sequence of nesting functions that each take a single argument.
function debounce(func, delay) let timer; return function (...args) clearTimeout(timer); timer = setTimeout(() => func.apply(this, args), delay); ; Use code with caution. Deep Copy vs. Shallow Copy
Compares both the value and the data type without coercion. If the types are different, it immediately returns false . For example, 5 === "5" returns false . Q2: Explain Closures with a practical code example.
