Prime

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Prime

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script.js

/*
Prime - Challenge:

The function `prime(num)` accepts a number argument and returns the boolean `true` if the number is a prime number otherwise it returns return `false`. 

Examples:


- INPUT: prime(5);
- OUTPUT: true


- INPUT: prime(10);
- OUTPUT: false


*/

// Write Code Below

function prime(num){
  for(i=2; i < num; i++){
    if (num%i === 0){
      return false;
    } else {
      return true;
    }
  }
}











































































































































































describe('prime', function(){
  it('prime is a function', function(){
    expect(typeof prime).toEqual('function');
  });

  it('prime returns a boolean', function(){
    expect(typeof prime(10)).toEqual('boolean');
  });

  it('prime returns `true` if the number is prime', function(){
    expect(prime(5)).toEqual(true);
    expect(prime(7)).toEqual(true);
  });

  it('prime returns `false` if the number is not prime', function(){
    expect(prime(24)).toEqual(false);
    expect(prime(56)).toEqual(false);  
  });
});