Yuhong solution to week 3 homework.

battleGame.js

@@ -1,28 +1,39 @@
-// 1. Create attack function below.  This will take the following parameters:
-// attackingPlayer, defendingPlayer, baseDamage, variableDamage
+// 1. Create attackFunc function below.  This will take the following parameters:
+// attackFuncingPlayer, defendingPlayer, baseDamage, variableDamage
+
+// function attackFunc(attackFuncingPlayer, defendingPlayer, baseDamage, variableDamage) {
+//   let damage = Math.round(baseDamage + Math.random() * variableDamage);
+//   defendingPlayer.health = defendingPlayer.health - damage;
+//   return `${attackFuncingPlayer.name} hits ${defendingPlayer.name} for ${defendingPlayer.health} damage`;
+// }
 
 
 
 // 2. Create player1 and player2 objects below
 // Each should have a name property of your choosing, and health property equal to 10
+let player1 = {name: "Jack", health: 10}
+let player2 = {name: "Mike", health: 10}
 
 
+// 3. Refactor attackFunc function to an arrow function.  Comment out function above.
 
-// 3. Refactor attack function to an arrow function.  Comment out function above.
-
-
+const attackFunc = (attackFuncingPlayer, defendingPlayer, baseDamage, variableDamage) => {
+  let damage = Math.round(baseDamage + Math.random() * variableDamage);
+  defendingPlayer.health = defendingPlayer.health - damage;
+  return `${attackFuncingPlayer.name} hits ${defendingPlayer.name} for ${defendingPlayer.health} damage`;
+}
 
 // DO NOT MODIFY THE CODE BELOW THIS LINE
-// Set attacker and defender.  Reverse roles each iteration
-let attackOrder = [player1, player2];
+// Set attackFuncer and defender.  Reverse roles each iteration
+let attackFuncOrder = [player1, player2];
 
 // Everything related to preventInfiniteLoop would not generally be necessary, just adding to
 // safeguard students from accidentally creating an infinite loop & crashing browser
 let preventInfiniteLoop = 100;
 while (player1.health >= 1 && player2.health >= 1 && preventInfiniteLoop > 0) {
-  const [attackingPlayer, defendingPlayer] = attackOrder;
-  console.log(attack(attackingPlayer, defendingPlayer, 1, 2));
-  attackOrder = attackOrder.reverse();
+  const [attackFuncingPlayer, defendingPlayer] = attackFuncOrder;
+  console.log(attackFunc(attackFuncingPlayer, defendingPlayer, 1, 2));
+  attackFuncOrder = attackFuncOrder.reverse();
 
   preventInfiniteLoop--;
 }

itemizedReceipt.js

@@ -3,6 +3,16 @@
 // i.e. {descr: 'Coke', price: 1.99}
 // function should log each item to the console and log a total price
 
+let total = 0;
+const logReceipt = function() {
+	const args = Array.from(arguments);
+	args.forEach(function(receipt) {
+		total += receipt.price;
+		console.log(`${receipt.descr} - ${receipt.price}`);
+		console.log(`Running total: ${total}`);
+	});
+	console.log(`Total - ${total}`);
+}
 
 
 // Check

phoneNumber.js

@@ -4,6 +4,10 @@
 // '206-333-4444'
 // '206 333 4444'
 // Returns true if valid, false if not valid
+function testPhoneNumber(phoneNbr) {
+    let regex1 = /^\(?([0-9]{3})\)?[- ]?([0-9]{3})[- ]?([0-9]{4})$/
+    return regex1.test(phoneNbr); //result is: true
+}
 
 
 
@@ -29,8 +33,21 @@ console.log(testPhoneNumber('(206) 33-4444')); // should return false, missing a
 // and run the exec method to capture the area code and remaining part of
 // the phone number.
 // Returns an object in the format {areaCode, phoneNumber}
-
-
+function parsePhoneNumber(phoneNbr) {
+    let regexMix = /([0-9]{4}|[0-9]{3})/g;
+    let arrayExtraction;
+    let nbr = "";
+    let areaCode = "";
+    let i = 0;
+    while ((arrayExtraction = regexMix.exec(phoneNbr)) !== null) {
+        if (i == 0)
+            areaCode = arrayExtraction[0];
+        else 
+            nbr += arrayExtraction[0];
+        i++;
+    }
+    return `areaCode: '${areaCode}', phoneNumber: '${nbr}'`;
+}
 
 // Check parsePhoneNumber
 console.log(parsePhoneNumber('206-333-4444'));

soccer.js

@@ -1,4 +1,4 @@
-
+(function(){
 const RESULT_VALUES = {
   w: 3,
   d: 1,
@@ -19,7 +19,13 @@ const getPointsFromResult = function getPointsFromResult(result) {
 // Create getTotalPoints function which accepts a string of results
 // including wins, draws, and losses i.e. 'wwdlw'
 // Returns total number of points won
-
+function getTotalPoints (resultStr) {
+  let totalPts = 0;
+  [...resultStr].forEach(element => {
+    totalPts += getPointsFromResult(element)
+  });
+  return totalPts;
+}
 
 
 // Check getTotalPoints
@@ -29,7 +35,12 @@ console.log(getTotalPoints('wwdl')); // should equal 7
 // each argument is a team object in the format { name, results }
 // i.e. {name: 'Sounders', results: 'wwlwdd'}
 // Logs each entry to the console as "Team name: points"
-
+function orderTeams() {
+  const args = Array.from(arguments);
+  args.forEach(function(team){
+    console.log(`${team.name}: ${getTotalPoints(team.results)}`);
+  });
+}
 
 
 // Check orderTeams
@@ -39,4 +50,5 @@ orderTeams(
 );
 // should log the following to the console:
 // Sounders: 7
-// Galaxy: 4
+// Galaxy: 4
+})();

spaceShip.js

@@ -2,8 +2,24 @@
 // - should set two properties: name and topSpeed
 // - should have a method accelerate that logs to the console 
 //   `${name} moving to ${topSpeed}`
-
+class Spaceship {
+	constructor(name, topSpeed){
+		this.name = name;
+		this.topSpeed = topSpeed;
+	}
+	accelerate(name, topSpeed){
+		console.log(`${this.name} moving to ${this.topSpeed}`);
+	}
+}
+const ss1 = new Spaceship("Voyager", "130kmps");
+const ss2 = new Spaceship("Expedition", "160kmps");
 
 
 // 2. Call the constructor with a couple ships, 
 // and call accelerate on both of them.
+ss1.accelerate()
+ss2.accelerate()
+
+//Here is the result for above two method calls:
+//Voyager moving to 130kmps
+//spaceShip.js:11 Expedition moving to 160kmps