started closure

ekm79 · ekm79 · commit d9ffd034e45c · 2018-05-22T20:41:11.000-04:00
diff --git a/assignments/closure.js b/assignments/closure.js
@@ -1,18 +1,46 @@
 // ==== Challenge 1: Write your own closure ====
 // Write a simple closure of your own creation.  Keep it simple!
+const closure = () => {
+    let myName = 'Erin';
+    console.log(`My name is ${myName}.`);
+    const favoriteBand = () => {
+        let band = 'Queen';
+        console.log(`My name is ${myName}, and my favorite band is ${band}.`);
+    };
+    return favoriteBand();
+};
+closure();
 
 
 // ==== Challenge 2: Create a counter function ====
 const counter = () => {
-  // Return a function that when invoked increments and returns a counter variable.
+  var counterVar = 0;
+  function incrementCounter() {
+    return function() {
+      counterVar++;
+    return counterVar;
+    };
+}
+return incrementCounter();
 };
+const newCounter = counter(0);
+newCounter();
 // Example usage: const newCounter = counter();
 // newCounter(); // 1
 // newCounter(); // 2
 
 
 // ==== Challenge 3: Create a counter function with an object that can increment and decrement ====
 const counterFactory = () => {
+    let counterVar = 0;
+    const increment = () => {
+        counterVar += 1;
+        increment();
+        return counterVar;
+    };
+    const decrement
+    return increment();
+    
   // Return an object that has two methods called `increment` and `decrement`.
   // `increment` should increment a counter variable in closure scope and return it.
   // `decrement` should decrement the counter variable and return it.
