<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Using the code provided, write a JavaScript function that checks if a given number is prime or not.
<|im_end|>
<|im_start|>assistant
const isPrime = (number) => {
  if (number <= 1) {
    return false;
  }
  for (let i = 2; i <= (number / 2); i++){
    if (number % i === 0) {
      return false;
    }
  }
  return true;
}<|im_end|>
