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How can I debounce a function to limit how often it runs in response to a frequently fired event?

Asked on Tuesday, Mar 17, 2026

Debouncing is a technique to limit how often a function is executed, especially useful for events that fire frequently, like window resizing or keypresses. Here's how you can implement a debounce func…

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…