Exercise – Operators & Control Structures

by iamKrickE

JavaScript

/**
 * Exercise:
 *
 * Get to know your control structures
 *
 * Work in the console, or use "console.log()" to output to the console from the script
 *
 * these browser based functions can be used
 *     alert("Message string"); // will alert a message to the user
 *     var val = prompt("Question string?"); // will prompt the user for a value and return the value
 *     confirm("Message string"); // will ask the user to confirm with an ok, or cancel, returning a boolean
 */

// 1)
// Ask the user for a number (using prompt())
// Tell the user if it is even or odd (using alert())
// (hint: prompt() will always return a string)
var askNumber = prompt ('gimme a number'),
	evenOdd;
if (askNumber%2 === 0){
     evenOdd = 'even';
 }
else {
    evenOdd = 'odd';
}
console.log(evenOdd);
//alert('your number is '+ evenOdd);

// 2)
// Ask the user how old they are (using prompt())
// If they are 70 or older, tell them they look great.
// If they are 18 or younger, tell them they should be in school.
// If they are between those ages, tell them to get a job.
var yourAge = prompt ('how old are you'),
	ageMessage;
if (yourAge <= 18){
     ageMessage = 'go to school';
 }
else if (yourAge >= 19 && yourAge <=70 ){
    ageMessage = 'get a job';
}
else {
    ageMessage = 'yer old';
}
console.log(ageMessage);
//alert(ageMessage);


// 3) 
// We have an array of values
// Use a while() statement to go through each value of the array
// and add 1 to each number (but not strings)
// log the resulting array to the console

var myArray = [1,2,3,"Interlocutor", 4,5,6];

for (i=0, 1 <= myArray.length, i++){
    if (myArray[i] typeof number) {
        myArray[i]+1;
	}
    i++;
}

// 4)
// Make an array of people's names
// Use a for statement to go through each and combine
// them into a single string separated by commas
// Log the result to the console.
// ex result: "John, Sally, Nick"