array-uniq - npm Package Compare versions

Comparing version 0.1.0 to 0.1.1

index.js

 'use strict';
 
-function uniq(arr) {
+// we have 3 implementations for unique, written in increasing order of efficiency
+
+// 1 - no Set type is defined
+function uniqNoSet(arr) {
 	var ret = [];
@@ -15,3 +18,15 @@
 
+// 2 - a simple Set type is defined
 function uniqSet(arr) {
+	var seen = new Set();
+	return arr.filter(function (el) {
+		if (!seen.has(el)) {
+			seen.add(el);
+			return true;
+		}
+	});
+}
+
+// 3 - a standard Set type is defined and it has a forEach method
+function uniqSetWithForEach(arr) {
 	var ret = [];
@@ -26,2 +41,11 @@
 
-module.exports = 'Set' in global ? uniqSet : uniq;
+// export the relevant implementation
+if ('Set' in global) {
+	if (typeof Set.prototype.forEach === 'function') {
+		module.exports = uniqSetWithForEach;
+	} else {
+		module.exports = uniqSet;
+	}
+} else {
+	module.exports = uniqNoSet;
+}

package.json

 {
   "name": "array-uniq",
-  "version": "0.1.0",
-  "description": "Returns a new array without duplicates",
+  "version": "0.1.1",
+  "description": "Create an array without duplicates",
   "license": "MIT",
@@ -6,0 +6,0 @@ "repository": "sindresorhus/array-uniq",

readme.md

 # array-uniq [![Build Status](https://travis-ci.org/sindresorhus/array-uniq.svg?branch=master)](https://travis-ci.org/sindresorhus/array-uniq)
 
-> Returns a new array without duplicates
+> Create an array without duplicates
 
@@ -5,0 +5,0 @@ It's already pretty fast, but will be much faster when [Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set) becomes available in V8 (especially with large arrays).

No alert changes

Improved metrics

Total package byte prevSize

2176

increased by34.32%

Lines of code

40

increased by122.22%

No dependency changes