exercise p1

Author: vsangui2

booleans-and-conditionals/exercises/part-1.js

@@ -1,5 +1,12 @@
 // Declare and initialize the variables for exercise 1 here:
 
+let engineIndicatorLight = "red blinking";
+let spaceSuitsOn = true;
+let shuttleCabinReady = true;
+let crewStatus = spaceSuitsOn && shuttleCabinReady;
+let computerStatusCode = 200;
+let shuttleSpeed = 15000;
+
 // BEFORE running the code, predict what will be printed to the console by the following statements:
 
 if (engineIndicatorLight === "green") {

booleans-and-conditionals/exercises/part-2.js

@@ -9,13 +9,33 @@ let shuttleSpeed = 15000;
 
 // a) If crewStatus is true, print "Crew Ready" else print "Crew Not Ready".
 
+if (crewStatus){
+    console.log("Crew Ready");
+} else {
+    console.log("Crew Not Ready");
+}
 
 // b) If computerStatusCode is 200, print "Please stand by. Computer is rebooting." Else if computerStatusCode is 400, print "Success! Computer online." Else print "ALERT: Computer offline!"
 
+if (computerStatusCode === 200){
+    console.log("Please stand by. Computer is rebooting");
+} else if (computerStatusCode === 400){
+    console.log("Success! Computer online");
+} else {
+    console.log("ALERT: Computer offline!");
+}
 
 // c) If shuttleSpeed is > 17,500, print "ALERT: Escape velocity reached!" Else if shuttleSpeed is < 8000, print "ALERT: Cannot maintain orbit!" Else print "Stable speed".
 
+if (shuttleSpeed > 17500){
+    console.log("ALERT: Escape velocity reached!");
+} else if (shuttleSpeed < 8000){
+    console.log("ALERT: Cannot maintain orbit!");
+} else {
+    console.log("Stable speed");
+}
 
 // 4) PREDICT: Do the code blocks shown in the 'predict.txt' file produce the same result?
 
-console.log(/* "Yes" or "No" */);
+
+console.log("Yes");

booleans-and-conditionals/exercises/part-3.js

@@ -4,7 +4,7 @@ let engineTemperature = 1200;
 
 /* 5) Implement the following checks using if/else if/else statements:
 
-a) If fuelLevel is above 20000 AND engineTemperature is at or below 2500, print "Full tank. Engines good."
+a) If fuelLevel is above 20000 AND engineTemperature is at or below 2500, print "Full tank. Engines good."" 
 
 b) If fuelLevel is above 10000 AND engineTemperature is at or below 2500, print "Fuel level above 50%.  Engines good."
 
@@ -18,7 +18,36 @@ f) Otherwise, print "Fuel and engine status pending..." */
 
 // Code 5a - 5f here:
 
+if (fuelLevel < 1000 || engineTemperature > 3500 || engineIndicatorLight === "red blinking"){
+    console.log("ENGINE FAILURE IMMINENT!");
+} else if (fuelLevel <= 5000 || engineTemperature > 2500){
+    console.log("Check fuel level. Engines running hot.");
+} else if (fuelLevel > 20000 && engineTemperature <= 2500){
+    console.log("Full tank. Engines good.");
+} else if (fuelLevel > 10000 && engineTemperature <= 2500){
+    console.log("Fuel level above 50%. Engines good.");
+} else if (fuelLevel > 5000 && engineTemperature <= 2500){
+    console.log("Fuel level above 25%. Engines good.");
+} else {
+    console.log("Fuel and engine status pending...");
+}
+
 // 6) a) Create the variable commandOverride, and set it to be true or false. If commandOverride is false, then the shuttle should only launch if the fuel and engine check are OK. If commandOverride is true, then the shuttle will launch regardless of the fuel and engine status.
+let commandOverride = true;
+
+if (!commandOverride){
+    if (fuelLevel > 5000 && engineTemperature > 3500 && engineIndicatorLight !== "red blinking") {
+        console.log("Shuttle ready for launch");
+    }
+} else {
+    console.log("Shuttle Launch ready");
+}
 
 /* 6) b) Code the following if/else check:
 If fuelLevel is above 20000 AND engineIndicatorLight is NOT red blinking OR commandOverride is true print "Cleared to launch!" Else print "Launch scrubbed!" */
+
+if (fuelLevel > 20000 && engineIndicatorLight !== "red blinking" || commandOverride === true) {
+    console.log("Cleared to launch!");
+} else {
+    console.log("Launch scrubbed@"):
+}

errors-and-debugging/exercises/Debugging1stSyntaxError.js

@@ -4,7 +4,7 @@
 let launchReady = false;
 let fuelLevel = 17000;
 
-if (fuelLevel >= 20000 {
+if (fuelLevel >= 20000) {
    console.log('Fuel level cleared.');
    launchReady = true;
 } else {

errors-and-debugging/exercises/DebuggingLogicErrors2.js

@@ -17,6 +17,8 @@ if (fuelLevel >= 20000) {
    launchReady = false;
 }
 
+console.log(launchReady);
+
 // if (crewStatus && computerStatus === 'green'){
 //    console.log('Crew & computer cleared.');
 //    launchReady = true;

errors-and-debugging/exercises/DebuggingLogicErrors3.js

@@ -25,6 +25,7 @@ if (crewStatus && computerStatus === 'green'){
    console.log('WARNING: Crew or computer not ready!');
    launchReady = false;
 }
+console.log(launchReady);
 
 // if (launchReady) {
 //    console.log('10, 9, 8, 7, 6, 5, 4, 3, 2, 1...');

errors-and-debugging/exercises/DebuggingLogicErrors5.js

@@ -3,6 +3,7 @@
 // Refactor the code to do this. Verify that your change works by updating the console.log statements.
 
 let launchReady = false;
+let crewReady = false;
 let fuelLevel = 17000;
 let crewStatus = true;
 let computerStatus = 'green';
@@ -19,10 +20,17 @@ console.log("launchReady = ", launchReady);
 
 if (crewStatus && computerStatus === 'green'){
    console.log('Crew & computer cleared.');
-   launchReady = true;
+   crewReady = true;
 } else {
    console.log('WARNING: Crew or computer not ready!');
-   launchReady = false;
+   crewReady = false;
 }
 
-console.log("launchReady = ", launchReady);
+console.log("crewReady = ", crewReady);
+
+if (!launchReady && crewStatus) {
+   console.log("10,9,8,7,6,5,4,3,2,1...");
+   console.log("Liftoff!");
+} else {
+   console.log("Launch scrubbed!");
+}

errors-and-debugging/exercises/DebuggingRuntimeErrors1.js

@@ -4,7 +4,7 @@
 let launchReady = false;
 let fuelLevel = 17000;
 
-if (fuellevel >= 20000) {
+if (fuelLevel >= 20000) {
    console.log('Fuel level cleared.');
    launchReady = true;
 } else {

errors-and-debugging/exercises/DebuggingRuntimeErrors2.js

@@ -14,7 +14,7 @@ if (launchReady) {
    console.log("Fed parrot...");
    console.log("6, 5, 4...");
    console.log("Ignition...");
-   consoul.log("3, 2, 1...");
+   console.log("3, 2, 1...");
    console.log("Liftoff!");
 } else {
    console.log("Launch scrubbed.");

errors-and-debugging/exercises/DebuggingSyntaxErrors2.js

@@ -8,7 +8,7 @@ let launchReady = false;
 let crewStatus = true;
 let computerStatus = 'green';
 
-if (crewStatus &&& computerStatus === 'green'){
+if (crewStatus && computerStatus === 'green'){
    console.log('Crew & computer cleared.');
    launchReady = true;
 } else {
@@ -17,7 +17,7 @@ if (crewStatus &&& computerStatus === 'green'){
 }
 
 if (launchReady) {
-   console.log(("10, 9, 8, 7, 6, 5, 4, 3, 2, 1...");
+   console.log("10, 9, 8, 7, 6, 5, 4, 3, 2, 1...");
    console.log("Fed parrot...");
    console.log("Ignition...");
    console.log("Liftoff!");