What are some examples of function implementations in programming?

What are some examples of function implementations in programming?

Function implementations can vary by programming language. Are you looking for examples in a specific language?

Yes, can you give me examples in Python?

Sure! Here are a few examples:

1. A simple function to add two numbers:

def add(a, b):
    return a + b

2. A function to check if a number is prime:

def is_prime(n):
    if n <= 1:
        return False
    for i in range(2, int(n**0.5) + 1):
        if n % i == 0:
            return False
    return True

Can you explain how the prime-checking function works?

Absolutely! The is_prime function checks if a number is prime by:

1. Returning False for numbers less than or equal to 1.
2. Iterating from 2 to the square root of n to check for divisibility. If n is divisible by any of these numbers, it returns False; otherwise, it returns True.

What about examples in JavaScript?

In JavaScript, here are some examples:

1. A function to multiply two numbers:

function multiply(a, b) {
    return a * b;
}

2. A function to reverse a string:

function reverseString(str) {
    return str.split('').reverse().join('');
}