array-uniq - npm Package Compare versions

Comparing version 1.0.3 to 2.0.0

index.js

		'use strict';

		// there's 3 implementations written in increasing order of efficiency

		// 1 - no Set type is defined
		function uniqNoSet(arr) {
		var ret = [];

		for (var i = 0; i < arr.length; i++) {
		if (ret.indexOf(arr[i]) === -1) {
		ret.push(arr[i]);
		}
		}

		return ret;
		}

		// 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;
		}

		return false;
		});
		}

		// 3 - a standard Set type is defined and it has a forEach method
		function uniqSetWithForEach(arr) {
		var ret = [];

		(new Set(arr)).forEach(function (el) {
		ret.push(el);
		});

		return ret;
		}

		// V8 currently has a broken implementation
		// https://github.com/joyent/node/issues/8449
		function doesForEachActuallyWork() {
		var ret = false;

		(new Set([true])).forEach(function (el) {
		ret = el;
		});

		return ret === true;
		}

		if ('Set' in global) {
		if (typeof Set.prototype.forEach === 'function' && doesForEachActuallyWork()) {
		module.exports = uniqSetWithForEach;
		} else {
		module.exports = uniqSet;
		}
		} else {
		module.exports = uniqNoSet;
		}
		module.exports = x => [...new Set(x)];

package.json

		{
		"name": "array-uniq",
		"version": "1.0.3",
		"description": "Create an array without duplicates",
		"license": "MIT",
		"repository": "sindresorhus/array-uniq",
		"author": {
		"name": "Sindre Sorhus",
		"email": "sindresorhus@gmail.com",
		"url": "sindresorhus.com"
		},
		"engines": {
		"node": ">=0.10.0"
		},
		"scripts": {
		"test": "xo && ava"
		},
		"files": [
		"index.js"
		],
		"keywords": [
		"array",
		"arr",
		"set",
		"uniq",
		"unique",
		"es6",
		"duplicate",
		"remove"
		],
		"devDependencies": {
		"ava": "*",
		"es6-set": "^0.1.0",
		"require-uncached": "^1.0.2",
		"xo": "*"
		}
		"name": "array-uniq",
		"version": "2.0.0",
		"description": "Create an array without duplicates",
		"license": "MIT",
		"repository": "sindresorhus/array-uniq",
		"author": {
		"name": "Sindre Sorhus",
		"email": "sindresorhus@gmail.com",
		"url": "sindresorhus.com"
		},
		"engines": {
		"node": ">=6"
		},
		"scripts": {
		"test": "xo && ava"
		},
		"files": [
		"index.js"
		],
		"keywords": [
		"array",
		"set",
		"uniq",
		"unique",
		"duplicate",
		"remove"
		],
		"devDependencies": {
		"ava": "*",
		"xo": "*"
		}
		}

readme.md

		@@ -5,9 +5,7 @@ # array-uniq [![Build Status](https://travis-ci.org/sindresorhus/array-uniq.svg?branch=master)](https://travis-ci.org/sindresorhus/array-uniq)

		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).


		## Install

		```
		$ npm install --save array-uniq
		$ npm install array-uniq
		```
		@@ -14,0 +12,0 @@

license

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