[patch] fix nested empty objects being empty

src/index.js

@@ -16,7 +16,6 @@ function diffler(obj1, obj2) {
 
       // If property exists in obj1 and not in obj2 then it has been removed
       if (!(key in obj2)) {
-        if(!diff) { diff = {}; }
         diff[key] = {
           from: obj1Val,
           to: null // using null to specify that the value is empty in obj2
@@ -26,15 +25,15 @@ function diffler(obj1, obj2) {
       // If property is an object then we need to recursively go down the rabbit hole
       else if(typeof obj1Val === 'object') {
         var tempDiff = diffler(obj1Val, obj2Val);
-        if(tempDiff) {
-          if(!diff) { diff = {}; }
-          diff[key] = tempDiff;
+        if(Object.keys(tempDiff).length > 0) {
+          if(tempDiff) {
+            diff[key] = tempDiff;
+          }
         }
       }
 
       // If property is in both obj1 and obj2 and is different
       else if (obj1Val !== obj2Val) {
-        if(!diff) { diff = {}; }
         diff[key] = {
           from: obj1Val,
           to: obj2Val

tests/performance.js

@@ -8,7 +8,7 @@ const suite = function() {
 }
 
 const ops = benchmarker.bench10(suite);
-const benchmark = 236941; // update value to set new benchmark
+const benchmark = 222587; // update value to set new benchmark
 console.info(`Executed ${ops} ops/s`);
 const diff = Math.round(100 - ((benchmark / ops) * 100));