deep-is - npm Package Compare versions

Comparing version 0.1.0 to 0.1.1

index.js

@@ -12,4 +12,8 @@ var pSlice = Array.prototype.slice;
 var deepEqual = module.exports = function (actual, expected) {
+  // enforce Object.is +0 !== -0
+  if (actual === 0 && expected === 0) {
+    return areZerosEqual(actual, expected);
+
   // 7.1. All identical values are equivalent, as determined by ===.
-  if (actual === expected) {
+  } else if (actual === expected) {
     return true;
@@ -37,3 +41,3 @@
   }
-}
+};
 
@@ -53,2 +57,7 @@ function isUndefinedOrNull(value) {
 
+function areZerosEqual(zeroA, zeroB) {
+  // (1 / +0|0) -> Infinity, but (1 / -0) -> -Infinity and (Infinity !== -Infinity)
+  return (1 / zeroA) === (1 / zeroB);
+}
+
 function objEquiv(a, b) {
@@ -55,0 +64,0 @@ if (isUndefinedOrNull(a) || isUndefinedOrNull(b))

package.json

 {
   "name": "deep-is",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "node's assert.deepEqual algorithm except for NaN being equal to NaN",
@@ -5,0 +5,0 @@ "main": "index.js",

No alert changes

Improved metrics

Total package byte prevSize

6665

10.49%

Number of package files

9

12.5%

Lines of code

145

14.17%

No dependency changes