Javascript course at Code Academy

dragon-slaying_game

var slaying = true;
var youHit;
var damageThisRound;
var totalDamage =0;
var totalHit =0;

while(slaying){
    youHit = Math.floor(Math.random() * 2);
    if(youHit){
        totalHit++;
        console.log("You hit the dragon!");
        damageThisRound = Math.floor(Math.random()*5 + 1);
        totalDamage += damageThisRound;
        if(totalDamage>=4) {
            console.log("You won!"); 
            slaying = false;
        }
    }else{
        console.log("You're defeated!");
        slaying = false;    
    }

    if(!slaying){        
        console.log("totalHit: " + totalHit);
        console.log("totalDamage: " + totalDamage);
    }
}

for-while-do_loop

// Write your code below!
for(var i=0;i<3;i++){console.log("Subhanallah")}
 
var i=3;
while(i--){console.log("Alhamdulillah")}
 
var i=2;
do{console.log("La ilaha illallah")}while(i--) 

JavascriptCourse@CodeAcademy

/*
Find a name on strings using array, for loops, substr
*/

text = "Blah blah blah blah blah blah Eric \
blah blah blah Eric blah blah Eric blah blah \
blah blah blah blah blah Eric";

var myName = "blah";
var hits = [];

// Look for first letter of the name in the text
for(var i = 0; i < text.length; i++) {
	if (text[i] == myName[0]) {
		// If we find it, add characters up to
		// the length of my name to the array
        var foundName = text.substr(i,myName.length);
		if(foundName===myName)hits.push(foundName);
        i+=myName.length;
	}
}

if (hits.length === 0) {
	console.log("Your name wasn't found!");
} else {
	console.log(hits);
}

rock-paper-scissors_game

/*
Rock, Paper, Scissors choice game, Code Academy course js exercise
*/

var userChoice;
 
var getUserChoice = function(){
  var userChoice = prompt("Choose rock, paper, scissors!");
  if((userChoice != null) && !(userChoice==="rock" || userChoice==="paper" || userChoice==="scissors" )) {getUserChoice();}
  return userChoice;
}; 
 
userChoice = getUserChoice();
if(userChoice === null) console.log("Cancel play the game");
else {
  var computerChoice = Math.random(); userChoice
  if (computerChoice < 0.34) { computerChoice = "rock"; } 
  else if(computerChoice <= 0.67) { computerChoice = "paper"; } 
  else { computerChoice = "scissors"; } 
 
  console.log("Computer: " + computerChoice); 
  console.log("You: " + userChoice); 
  
  var compare = function(choice1,choice2){ 
    if(choice1 === choice2) return "tie"; 
    else if(choice1==="rock"){ 
      if(choice2==="scissors") return "rock"; 
      else return "paper"; 
    }else if(choice1==="paper"){ 
      if(choice2==="rock") return "paper"; 
      else return "scissors"; }
    else{ 
      if(choice2==="rock") return "rock"; 
      else return "scissors"; } 
  } 
  
  var result = compare(userChoice,computerChoice);
  if(result=="tie")  message = "The result is tie!"
  else{
    if(result==userChoice) winner = "You";
    else winner = "Computer"
    message = "The winner is " + winner;
  }
  
  console.log(message);
}