Initial Challenges solutions

Challenge_05.js

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+let seasons = {
+    winter : ["January", "December", "February"],
+    spring : ["March", "April", "May"],
+    summer  :["June", "July", "August"],
+    autumn : ["September", "October", "November"],
+
+}
+
+let month = "September"
+
+for (const key in seasons) {
+    if (seasons[key].indexOf(month) != -1) {
+        console.log("The Season is :", key);
+    }
+}
+

Challenge_10.js

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+var users = {
+    Alex: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript'],
+      age: 20,
+      isLoggedIn: false,
+      points: 30
+    },
+    Asab: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
+      age: 25,
+      isLoggedIn: false,
+      points: 50
+    },
+    Brook: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
+      age: 30,
+      isLoggedIn: true,
+      points: 50
+    },
+    Daniel: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    },
+    John: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
+      age: 20,
+      isLoggedIn: true,
+      points: 50
+    },
+    Thomas: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'React'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    },
+    Paul: {
+      email: '[email protected]',
+      skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
+      age: 20,
+      isLoggedIn: false,
+      points: 40
+    }
+  }
+
+//   Solution 1
+let MostSkilled = {
+    key : "Alex",
+    numSkills: users["Alex"].skills.length
+}
+
+for (const key in users) {
+    if (users[key].skills.length > MostSkilled["numSkills"]) {
+        MostSkilled = {
+            key : key,
+            numSkills: users[key].skills.length
+        }
+    }
+}
+
+console.log(MostSkilled["key"], users[MostSkilled["key"]]);
+
+// Solution 2
+// let MostSkilled = users["Alex"]
+
+// for (const key in users) {
+//     if (users[key].skills.length > MostSkilled.skills.length ) {
+//         MostSkilled = users[key]
+//     }
+// }
+
+// console.log(MostSkilled);

Challenge_14.js

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+console.log("$" + (+(prompt("Enter The price"))).toFixed(2));

Challenge_17.js

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+let arr =[4, 6, 9, "Hello", 8, "a", "0", "b"]
+let val = prompt("Give me the value you want to search.")
+
+if (arr.indexOf(+(val)) != -1 || arr.indexOf(val) != -1 ) {
+    console.log(val, "Is in the array.");
+} else {
+    console.log(val, "is not in the array.");
+}

Challenge_20.js

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+let num = "493193"
+let bigNum = num
+
+let sum;
+
+while (num.length > 1) {
+    sum = 0;
+    for (let index = 0; index < num.length; index++) {
+        sum += +(num[index]);
+    }
+    num = sum.toString()
+
+}
+
+console.log("The Digital Root of", bigNum, "is :", num)

Ultimate_Challenge.js

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+
+
+
+let flinker = [
+    {
+        title : "Me at the Beach",
+        caption: "Having fun with my firends at the beach",
+        photo: "beachPhotos/img1.png",
+        likes : ["Alex", "Recim", "Paul"]
+    },
+    {
+        title : "What a day at my grandma house",
+        caption: "Why don't people see their grandparents so often ? it is so cool",
+        photo: "grandMaPhotos/img2.png",
+        likes : ["Alex", "Recim", "Paul", "Tarek", "Chemsou"]
+    }
+]