Palindrome

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Palindrome

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/*

Palindrome Challenge - JavaScript JumpStart

Have the function **palindrome(str)** take the str parameter being passed, and return the boolean `true` if the argument is a palindrome (meaning that the string is the same forward as it is backward).  Otherwise, return the boolean `false`. 

Punctuation and numbers will not be part of the string.


- INPUT: palindrome("racecar");
- OUTPUT: true


- INPUT: palindrome("animal");
- OUTPUT: false

*/

// Write Code Below









function palindrome(str){
  var newStr = '';
  for (var i = str.length -1; i >=0 ; i--){
    newStr += str[i];
  }
 if (newStr === str){
   return true;
 } else{
   return false;
 }
}











































































































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

	it('palindrome returns a boolean value', function(){
		expect(typeof palindrome("codepen")).toEqual('boolean');
	});

	it('returns true if the argument is a palindrome', function(){
		expect(palindrome('racecar')).toEqual(true);
		expect(palindrome('madam')).toEqual(true);	
	});

	it('returns false if the argument is not a palindrome', function(){
		expect(palindrome('Mark Davis')).toEqual(false);
		expect(palindrome('space jam')).toEqual(false);	
	});

});