What are some examples of JavaScript functions?

Can you give me some examples of JavaScript functions?

Sure! Here are a few examples: 1. A simple function to add two numbers: function add(a, b) { return a + b; }. 2. A function that returns the square of a number: function square(x) { return x * x; }. 3. An anonymous function to log a message: const logMessage = function() { console.log('Hello, World!'); };.

What about arrow functions?

Arrow functions are a more concise way to write functions in JavaScript. For example: const add = (a, b) => a + b; is an arrow function that adds two numbers.

Can you explain higher-order functions?

Absolutely! Higher-order functions are functions that can take other functions as arguments or return them as results. For example, function map(arr, callback) { return arr.map(callback); } is a higher-order function that applies a callback to each element of an array.

What about closures?

Closures are functions that remember their outer variables even when the outer function has finished executing. For example: function outer() { let count = 0; return function inner() { count++; return count; }; } creates a closure that maintains the count variable.