amend function

Author: pathywang

Sprint-2/interpret/invert.js

@@ -10,20 +10,29 @@ function invert(obj) {
   const invertedObj = {};
 
   for (const [key, value] of Object.entries(obj)) {
-    invertedObj.key = value;
+
+    invertedObj[value] = key;
   }
 
   return invertedObj;
 }
 
-// a) What is the current return value when invert is called with { a : 1 }
+console.log(invert({a:1, b:2, apple:4}))
+
+// a) What is the current return value when invert is called with { a : 1 } 
+// it returns {key:1}
 
 // b) What is the current return value when invert is called with { a: 1, b: 2 }
+// it returns {key:2}
 
 // c) What is the target return value when invert is called with {a : 1, b: 2}
+// the target return value should be {'1': 'a','2':'b'}
 
 // c) What does Object.entries return? Why is it needed in this program?
+// Object.entries(obj) lets  loop [key, value] pairs easily because .entries(object/array) is built in method in javascript
 
 // d) Explain why the current return value is different from the target output
+// Because invertedObj.key=value is wrong which means  key of property will be always 'key'  and value will remains the same as obj array in invertedObj
 
 // e) Fix the implementation of invert (and write tests to prove it's fixed!)
+// I put invertedObh[value]= key instead then the function works as expected