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

Asked on Friday, Feb 13, 2026

Debouncing is a technique to limit the rate at which a function is executed, ensuring it runs only after a specified delay has passed since the last time it was invoked. This is useful for optimizing …

How can I prevent a function from being called too frequently in JavaScript?

Asked on Thursday, Feb 12, 2026

To prevent a function from being called too frequently, you can use a technique called "debouncing". Debouncing ensures that a function is only executed after a specified delay has passed since the la…

What are the differences between `let`, `var`, and `const` in JavaScript?

Asked on Wednesday, Feb 11, 2026

In JavaScript, "let", "var", and "const" are used to declare variables, but they have different behaviors in terms of scope, hoisting, and mutability. // Example of var var name = "Alice"; if (true) {…

How can I prevent a JavaScript function from modifying its input object?

Asked on Tuesday, Feb 10, 2026

To prevent a JavaScript function from modifying its input object, you can create a shallow copy of the object using Object.assign or the spread operator. Here's a simple example using the spread opera…