W2D2 Checkpoint.js

W2D2 Checkpoint

function average(x,y) {  // Good Job!, try and keep your spacing and formating consistent
	return (x+y)/ 2;	
}

function greeter(name) { // Good Job!
	return 'Hello, '+ name;
}

function even(n) { // Good Job!
	return n % 2 === 0;
}
function odd(n) { // Good Job!
	return n % 2 !== 0;
}
function isPositive(n) { // Good Job!
	return n >= 0;
}
function isNegative(n) { // Good Job!
	return n < 0;
}
function sayHello(language) {  // Good Job!, would it make any difference if you had no else statments, only if statments?
	if(language === 'spanish') {
		return 'Hola!';
	} else if(language === 'french') {
		return 'Bonjour!';
	} else if(language === 'english') {
		return 'Hello!';
	}
}
function validCredentials(username, password) { // Good Job!
	if(username.length >= 6 && password.length >= 8) {
		return true;
	} else {
		return false;
	}
}
function repeatString(str, count){
	return str.repeat(count); // ok so we want to solve this without using str.repeat()
}
function average(array) { // Good Job!
	var start = 0;
	for(var i = 0; i < array.length; i++){
		start = start + array[i];	
	}
	return start / array.length;
}
function countWords(str) {  // Good Job!
	var words = str.toLowerCase().split(' ');
	var hist = {};
	for(var i = 0; i < words.length; i++) {
		if(hist[words[i]]){
			hist[words[i]]++;
		} else {
			hist[words[i]] = 1;
		}
	}
	return hist;
}

function revStr(str) { // Good Job!
	return str.split('').reverse().join('');
}