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What is the difference between 'let' and 'var' in JavaScript?

Asked on Monday, Mar 16, 2026

In JavaScript, "let" and "var" are both used to declare variables, but they have different scoping rules and behaviors. "let" is block-scoped, while "var" is function-scoped. // Example of 'let' if (t…

What is the difference between `let` and `var` in JavaScript?

Asked on Sunday, Mar 15, 2026

In JavaScript, "let" and "var" are both used to declare variables, but they have different scoping rules and behaviors. "let" is block-scoped, while "var" is function-scoped. function example() { if (…

What is the difference between `let` and `var` in terms of scope and hoisting?

Asked on Saturday, Mar 14, 2026

In JavaScript, "let" and "var" are used to declare variables, but they differ in terms of scope and hoisting behavior. "let" is block-scoped, while "var" is function-scoped. Additionally, "let" does n…

How can I debounce a function to limit its execution frequency in JavaScript?

Asked on Friday, Mar 13, 2026

Debouncing is a technique used to limit the rate at which a function is executed, ensuring it only runs after a specified period of inactivity. This is particularly useful for optimizing performance i…