added solutions

js/filterLongWords.js

@@ -0,0 +1,13 @@
+function filterLongWords(arr, maxLength) {
+  var final_arr = [];
+  arr.forEach(function(element) {
+    if (element.length < maxLength) {
+      final_arr.push(element);
+    };
+  });
+  return final_arr;
+}
+
+input = ['wer', 'ewrevale', 'awewe', 'nmlekr']
+
+console.log(filterLongWords(input, 8));

js/fizzbuzz.js

@@ -0,0 +1,11 @@
+for (var i = 1; i <= 100; i++) {
+  if (i % 15 == 0) {
+    console.log('FizzBuzz');
+  } else if (i % 3 == 0) {
+    console.log('Fizz');
+  } else if (i % 5 == 0) {
+    console.log('Buzz');
+  } else {
+    console.log(i);
+  }
+}

js/grade.js

@@ -0,0 +1,19 @@
+function grade(score) {
+  switch(true) {
+    case (score < 50):
+      return 'F';
+    case (score < 60):
+      return 'E';
+    case (score < 70):
+      return 'D';
+    case (score < 80):
+      return 'C';
+    case (score < 90):
+      return 'B';
+    case (score < 100):
+      return 'A';
+  };  
+}
+
+input = 85;
+console.log(grade(input));

js/phonebook.js

@@ -0,0 +1,35 @@
+var phoneBook = {
+  "Abe": "111-111-1111",
+  "Bob": "222-222-2222",
+  "Cam": "333-333-3333",
+  "Dan": "444-444-4444",
+  "Ern": "555-555-5555",
+  "Fry": "111-111-1111",
+  "Gil": "222-222-2222",
+  "Hal": "333-333-3333",
+  "Ike": "444-444-4444",
+  "Jim": "555-555-5555",
+  "Kip": "111-111-1111",
+  "Liv": "222-222-2222",
+  "Mia": "333-333-3333",
+  "Nik": "444-444-4444",
+  "Oli": "555-555-5555",
+  "Pam": "111-111-1111",
+  "Qiq": "222-222-2222",
+  "Rob": "333-333-3333",
+  "Stu": "444-444-4444",
+  "Tad": "555-555-5555",
+  "Uwe": "111-111-1111",
+  "Val": "222-222-2222",
+  "Wil": "333-333-3333",
+  "Xiu": "444-444-4444",
+  "Yam": "555-555-5555",
+  "Zed": "111-111-1111"
+};
+
+for (var key in phoneBook) {
+  if (phoneBook[key] == "333-333-3333") {
+    console.log(key);
+  }
+}
+

js/reverse.js

@@ -0,0 +1,10 @@
+function reverse(str) {
+  var final_str = "";
+  for (var i=str.length-1; i>=0; i--) {
+    final_str += str[i]
+  }
+  return final_str;
+}
+
+var input = 'building';
+console.log(reverse(input));