Colt's JS Exercises

gistfile1.txt

/**
 * Javascript Exercise: Objects
 */

/**
 * Question 1:
 * Modify the "booleanValue" function so that it returns "true" when it's called.
 */
function booleanValue() {
  return true;
}


/**
 * Question 2:
 * Modify the "helloWorld" function so it returs the string "Hello World!". 
 * Notice that the function is being executed and the result stored in the variable "q2"
 */
function helloWorld() {
  return "Hello World!"

}
var q2 = helloWorld();


/**
 * Question 3:
 * Modify the function "join" so that it concatenates (joins) the two string arguments together. 
 * Notice that the result of that function is being stored in q3
 */
function join(left, right) {
	return left + right

}
var q3 = join("1 + 1 = ", "2");


/**
 * Question 4:
 * You're on your own this time! First, write a function called "multiply" which takes in 
 * two numbers, multiplies them, and returns the result. Next call your new function 
 * with the number 42 and 3257 and store the result in variable "q4".
 */
function multiply(one, two){
	return one*two;
}
q4= multiply(42,3257);

/**
 * Question 5:
 * Write a function named "smallNumber" that compares two number and returns that one. 
 */
 function smallNumber(one, two){
 	if(one<two){
 		return one;
 	}
 	if(one>two){
 		return two;
 	}
}



/**
 * Question 6:
 * Similar to question 5, write a function called "bigNumber" which returns the larger of the
 * two number passed in as arguments
 */

  function bigNumber(one, two){
 	if(one<two){
 		return two;
 	}
 	if(one>two){
 		return one;
 	}
}


/**
 * Question 7:
 * Write a function named "sumArray" that takes an array as its only argument
 * and finds the sum of all the numbers in an array. 
 * There is an array provided below to test with.
 * Hint: Use you for loops!
 */
var testArray = [1, 5, 4, 3, 2, 9, 8, 7, 6, 10];
function addArray(array){
	sum = 0;
	for(var i =0; i<array.length; i++){
		sum = sum + array[i];
	}
	return sum;
}


/**
 * Question 8:
 * Now that you're a function writing master, write a function named "theBigOne" that finds the 
 * largest number in an array and returns it
 * Hint: You'll need to keep track of the largest number you found so far as 
 *       you step through the array
 */

function theBigOne(array){
	largest = array[0];
	for(var i =0; i<array.length; i++){
		if(array[i] > largest){
			largest = array[i];
		}
	}
	return largest;
}