w2d2_checkpoint.js

/**
Noah Loring
*/

// #1

function average (num1, num2) {
	return (num1 + num2)/2;
}

// #2

function greeter (name) {
	return "Welcome to Coruscant, " + name + "! Enjoy your stay.";
}

// #3

function even(value) {
	return value % 2 === 0;
}

function even(value) {
	return value % 2 !== 0;
}

function positive(value) {
	return value > 0;
}

function negitive(value) {
	return value < 0;
}

// #4

function sayHello (language) {
  if (language === "zulu") {
    return "sawubona";
  }
  if (language === "balinese") {
    return "om swasyastu";
  }
  if (language === "ancient egyptian") {
    return "liti em hotep";
  }
  if (language === "klingon") {
  	return "nuqneH";
  }
  return "Try again in a cooler language.";
}

// #5

function validCredentials (username, password) {
  return username.length >= 6 && password.length >= 8;
}

// #6

function repeatString (str, count) {
	return str.repeat(count);
}

// #7

/** 
I've named this function "arrayAverage" instead of "average" 
(which is what the instructions specified) due to a function 
above already being named "average".
*/

function arrayAverage (array) {
	var sum = 0;
	for (i = 0; i < array.length; i++) {
		sum = sum + array[i];
	}
	return sum/array.length;
}

// #8

/**
First we need to split at every " ".
Next we'd need a command that counts the frequency of a certain value within an array.
And then I'd need a loop that would build an object out of the frequencies found with the command.

Could be modified to be case insensitve simply by having one of the first lines within the 
function be a .toLowerCase() command, targeting the entire arguement.
*/

// Bonus #1

/**
I didn't know that '.reverse' was an option, so I did it manually. The use of two variables is
mess, but it works.
*/

function reverseString (str) {
	var arr = str.split(" ");
	var reversed = [];
	for (i = 1; i <= arr.length; i++) {
		reversed.push(arr[arr.length - i]);
	}
	return reversed.join(" ");
}

// Bonus #2

/**
Didn't get to this one yet.
*/