Week 3 challenge. finish

week-01-02/javascript-practice/execute.md

@@ -81,7 +81,7 @@
   -	yield is like return, can be used repeatedly (function running halts temporarily)
   -	can for-of over it, make `Array.from(numbers(1, 2))`
 
--	Computed Properties:
+-	**Computed Properties**:
   -	Create key → `{[x]: 5}`
   -	`[‘Be’ + ‘tty’]`
     ```javascript

week-03/challenges/kata-Over18.js

@@ -0,0 +1,70 @@
+/* Club Bouncer
+
+Write a function that 
+- looks at a queue
+- returns a guest list 
+  - with the full names 
+  - of all people aged 18+
+  - **Bonus**: last names in alphabetical order
+
+Example guest list:
+['Austen, Jane', 'Potter, Harry']
+
+*/
+
+const queue = [
+  { firstName: "Harry", lastName: "Baker", age: 15 },
+  { firstName: "Emma", lastName: "Smith", age: 20 },
+  { firstName: "Tom", lastName: "Smith", age: 18 },
+  { firstName: "Jane", lastName: "Austen", age: 17 },
+  { firstName: "Mary", lastName: "Shelley", age: 4 },
+  { firstName: "Mary", lastName: "Shelley", age: 4 },
+  { firstName: "Charles", lastName: "Dickens", age: 50 },
+]
+
+//console.log(queue[0].age); //15
+
+function over18(arr) {
+  // console.log(arr[0].age);
+  return arr.filter(item => item.age >= 18);
+}
+//console.log(over18(queue));
+
+function alphabeter(a, b) {
+  if (a.lastName > b.lastName) {
+    return 1;
+  } else if ((a.lastName === b.lastName) && (a.firstName > b.firstName)) {
+    return 1;
+  }
+  return -1;
+}
+
+function guestLister(arr) {
+  //  console.log(arr[0].firstName);
+  return arr
+    .filter(item => item.age >= 18)
+    .sort((a, b) => alphabeter(a, b))
+    .map(item => `${item.lastName}, ${item.firstName}`);
+}
+
+function guestLister1(arr) {
+  //  console.log(arr[0].firstName);
+  let overAge = over18(arr);
+  let sorted = overAge.sort((a, b) => {
+    return (a.lastName > b.lastName) ? 1
+      : ((a.lastName === b.lastName) && (a.firstName > b.firstName)) ? 1
+        : -1;
+    if (a.lastName > b.lastName) {
+      return 1;
+    } else if (a.lastName === b.lastName) {
+      return a.firstName > b.firstName ? 1 : -1;
+    }
+    return -1;
+  });
+  console.log(sorted);
+  let guestList = sorted.map(item => `${item.lastName}, ${item.firstName}`);
+  return guestList;
+}
+
+console.log(guestLister(queue));
+console.log("Should be ",)