While loop

while-loop/package-lock.json

@@ -0,0 +1,13 @@
+{
+  "name": "loops",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "readline-sync": {
+      "version": "1.4.10",
+      "resolved": "https://registry.npmjs.org/readline-sync/-/readline-sync-1.4.10.tgz",
+      "integrity": "sha512-gNva8/6UAe8QYepIQH/jQ2qn91Qj0B9sYjMBBs3QOB8F2CXcKgLxQaJRP76sWVRQt+QU+8fAkCbCvjjMFu7Ycw=="
+    }
+  }
+}

while-loop/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "loops",
+  "version": "1.0.0",
+  "description": "",
+  "main": "for_loop_1.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "readline-sync": "^1.4.10"
+  }
+}

while-loop/solution.js

@@ -0,0 +1,44 @@
+let input = require('readline-sync');
+
+let fuelLevel = 0, numAstronauts = 0, altitude = 0;
+
+while(true) {
+    fuelLevel = input.question('Enter the starting fuel level: ');
+    if (fuelLevel > 5_000 && fuelLevel < 30_000 && !isNaN(fuelLevel)) {
+        break;
+    }
+}
+
+
+console.log(fuelLevel);
+
+while(true) {
+    numAstronauts = input.question('Enter the number of astronauts: ');
+    numAstronauts = Number(numAstronauts)
+    if (numAstronauts  < 1) {
+        continue;
+    }
+    if (numAstronauts  > 7) {
+        continue;
+    }
+    if (isNaN(numAstronauts)) {
+        continue;
+    }
+    if (!Number.isInteger(numAstronauts)) {
+        continue;
+    }
+    break;
+}
+
+while (fuelLevel -  100*numAstronauts >=0) {
+    altitude+=50;
+    fuelLevel -= 100*numAstronauts;
+}
+
+console.log(`fuellevel: ${fuelLevel}`);
+console.log(`altitude: ${altitude}`);
+
+
+
+
+console.log(numAstronauts);