lodash.intersection - npm Package Compare versions

Comparing version 3.2.0 to 4.0.0

index.js

 /**
- * lodash 3.2.0 (Custom Build) <https://lodash.com/>
- * Build: `lodash modern modularize exports="npm" -o ./`
- * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * lodash 4.0.0 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modularize exports="npm" -o ./`
+ * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
  * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
  * Available under MIT license <https://lodash.com/license>
  */
-var baseIndexOf = require('lodash._baseindexof'),
-    cacheIndexOf = require('lodash._cacheindexof'),
-    createCache = require('lodash._createcache'),
-    restParam = require('lodash.restparam');
+var SetCache = require('lodash._setcache'),
+    arrayIncludes = require('lodash._arrayincludes'),
+    arrayIncludesWith = require('lodash._arrayincludeswith'),
+    arrayMap = require('lodash._arraymap'),
+    cacheHas = require('lodash._cachehas'),
+    rest = require('lodash.rest');
 
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER = 9007199254740991;
+
+/** `Object#toString` result references. */
+var funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]';
+
 /**
- * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
- * of an array-like value.
+ * The base implementation of `_.unary` without support for storing wrapper metadata.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new function.
  */
-var MAX_SAFE_INTEGER = 9007199254740991;
+function baseUnary(func) {
+  return function(value) {
+    return func(value);
+  };
+}
 
+/** Used for built-in method references. */
+var objectProto = global.Object.prototype;
+
 /**
+ * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objectToString = objectProto.toString;
+
+/**
+ * The base implementation of methods like `_.intersection`, without support
+ * for iteratee shorthands, that accepts an array of arrays to inspect.
+ *
+ * @private
+ * @param {Array} arrays The arrays to inspect.
+ * @param {Function} [iteratee] The iteratee invoked per element.
+ * @param {Function} [comparator] The comparator invoked per element.
+ * @returns {Array} Returns the new array of shared values.
+ */
+function baseIntersection(arrays, iteratee, comparator) {
+  var includes = comparator ? arrayIncludesWith : arrayIncludes,
+      othLength = arrays.length,
+      othIndex = othLength,
+      caches = Array(othLength),
+      result = [];
+
+  while (othIndex--) {
+    var array = arrays[othIndex];
+    if (othIndex && iteratee) {
+      array = arrayMap(array, baseUnary(iteratee));
+    }
+    caches[othIndex] = !comparator && (iteratee || array.length >= 120)
+      ? new SetCache(othIndex && array)
+      : undefined;
+  }
+  array = arrays[0];
+
+  var index = -1,
+      length = array.length,
+      seen = caches[0];
+
+  outer:
+  while (++index < length) {
+    var value = array[index],
+        computed = iteratee ? iteratee(value) : value;
+
+    if (!(seen ? cacheHas(seen, computed) : includes(result, computed, comparator))) {
+      var othIndex = othLength;
+      while (--othIndex) {
+        var cache = caches[othIndex];
+        if (!(cache ? cacheHas(cache, computed) : includes(arrays[othIndex], computed, comparator))) {
+          continue outer;
+        }
+      }
+      if (seen) {
+        seen.push(computed);
+      }
+      result.push(value);
+    }
+  }
+  return result;
+}
+
+/**
  * The base implementation of `_.property` without support for deep paths.
@@ -46,20 +125,138 @@ *
 /**
- * Checks if `value` is array-like.
+ * Converts `value` to an array-like object if it's not one.
  *
  * @private
+ * @param {*} value The value to process.
+ * @returns {Array} Returns the array-like object.
+ */
+function toArrayLikeObject(value) {
+  return isArrayLikeObject(value) ? value : [];
+}
+
+/**
+ * Creates an array of unique values that are included in all of the provided
+ * arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @returns {Array} Returns the new array of shared values.
+ * @example
+ * _.intersection([2, 1], [4, 2], [1, 2]);
+ * // => [2]
+ */
+var intersection = rest(function(arrays) {
+  var mapped = arrayMap(arrays, toArrayLikeObject);
+  return (mapped.length && mapped[0] === arrays[0])
+    ? baseIntersection(mapped)
+    : [];
+});
+
+/**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
  */
 function isArrayLike(value) {
-  return value != null && isLength(getLength(value));
+  return value != null &&
+    !(typeof value == 'function' && isFunction(value)) && isLength(getLength(value));
 }
 
 /**
+ * This method is like `_.isArrayLike` except that it also checks if `value`
+ * is an object.
+ *
+ * @static
+ * @memberOf _
+ * @type Function
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array-like object, else `false`.
+ * @example
+ *
+ * _.isArrayLikeObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLikeObject(document.body.children);
+ * // => true
+ *
+ * _.isArrayLikeObject('abc');
+ * // => false
+ *
+ * _.isArrayLikeObject(_.noop);
+ * // => false
+ */
+function isArrayLikeObject(value) {
+  return isObjectLike(value) && isArrayLike(value);
+}
+
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in Safari 8 which returns 'object' for typed array constructors, and
+  // PhantomJS 1.9 which returns 'function' for `NodeList` instances.
+  var tag = isObject(value) ? objectToString.call(value) : '';
+  return tag == funcTag || tag == genTag;
+}
+
+/**
  * Checks if `value` is a valid array-like length.
  *
- * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
+ * **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
  *
- * @private
+ * @static
+ * @memberOf _
+ * @category Lang
  * @param {*} value The value to check.
  * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @example
+ *
+ * _.isLength(3);
+ * // => true
+ *
+ * _.isLength(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isLength(Infinity);
+ * // => false
+ *
+ * _.isLength('3');
+ * // => false
  */
@@ -71,52 +268,58 @@ function isLength(value) {
 /**
- * Creates an array of unique values in all provided arrays using
- * [`SameValueZero`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
- * for equality comparisons.
+ * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
+ * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
- * @category Array
- * @param {...Array} [arrays] The arrays to inspect.
- * @returns {Array} Returns the new array of shared values.
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
  * @example
- * _.intersection([1, 2], [4, 2], [2, 1]);
- * // => [2]
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
+ * // => false
  */
-var intersection = restParam(function(arrays) {
-  var othLength = arrays.length,
-      othIndex = othLength,
-      caches = Array(length),
-      indexOf = baseIndexOf,
-      isCommon = true,
-      result = [];
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return !!value && (type == 'object' || type == 'function');
+}
 
-  while (othIndex--) {
-    var value = arrays[othIndex] = isArrayLike(value = arrays[othIndex]) ? value : [];
-    caches[othIndex] = (isCommon && value.length >= 120) ? createCache(othIndex && value) : null;
-  }
-  var array = arrays[0],
-      index = -1,
-      length = array ? array.length : 0,
-      seen = caches[0];
+/**
+ * Checks if `value` is object-like. A value is object-like if it's not `null`
+ * and has a `typeof` result of "object".
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ * @example
+ *
+ * _.isObjectLike({});
+ * // => true
+ *
+ * _.isObjectLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isObjectLike(_.noop);
+ * // => false
+ *
+ * _.isObjectLike(null);
+ * // => false
+ */
+function isObjectLike(value) {
+  return !!value && typeof value == 'object';
+}
 
-  outer:
-  while (++index < length) {
-    value = array[index];
-    if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value, 0)) < 0) {
-      var othIndex = othLength;
-      while (--othIndex) {
-        var cache = caches[othIndex];
-        if ((cache ? cacheIndexOf(cache, value) : indexOf(arrays[othIndex], value, 0)) < 0) {
-          continue outer;
-        }
-      }
-      if (seen) {
-        seen.push(value);
-      }
-      result.push(value);
-    }
-  }
-  return result;
-});
-
 module.exports = intersection;

package.json

 {
   "name": "lodash.intersection",
-  "version": "3.2.0",
-  "description": "The modern build of lodash’s `_.intersection` as a module.",
+  "version": "4.0.0",
+  "description": "The lodash method `_.intersection` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",
   "license": "MIT",
-  "keywords": "lodash, lodash-modularized, stdlib, util",
+  "keywords": "lodash, lodash-modularized, stdlib, util, intersection",
   "author": "John-David Dalton <[e-mail]> (http://allyoucanleet.com/)",
   "contributors": [
     "John-David Dalton <[e-mail]> (http://allyoucanleet.com/)",
-    "Benjamin Tan <[e-mail]> (https://d10.github.io/)",
-    "Blaine Bublitz <[e-mail]> (http://www.iceddev.com/)",
-    "Kit Cambridge <[e-mail]> (http://kitcambridge.be/)",
+    "Blaine Bublitz <[e-mail]> (https://github.com/phated)",
     "Mathias Bynens <[e-mail]> (https://mathiasbynens.be/)"
@@ -20,7 +18,9 @@ ],
   "dependencies": {
-    "lodash._baseindexof": "^3.0.0",
-    "lodash._cacheindexof": "^3.0.0",
-    "lodash._createcache": "^3.0.0",
-    "lodash.restparam": "^3.0.0"
+    "lodash._arrayincludes": "^3.0.0",
+    "lodash._arrayincludeswith": "^3.0.0",
+    "lodash._arraymap": "^3.0.0",
+    "lodash._cachehas": "^3.0.0",
+    "lodash._setcache": "^3.0.0",
+    "lodash.rest": "^4.0.0"
   }
 }

README.md

@@ -1,4 +0,4 @@
-# lodash.intersection v3.2.0
+# lodash.intersection v4.0.0
 
-The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash’s](https://lodash.com/) `_.intersection` exported as a [Node.js](http://nodejs.org/)/[io.js](https://iojs.org/) module.
+The [lodash](https://lodash.com/) method `_.intersection` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -8,3 +8,2 @@ ## Installation
 Using npm:
-
 ```bash
@@ -15,4 +14,3 @@ $ {sudo -H} npm i -g npm
 
-In Node.js/io.js:
-
+In Node.js:
 ```js
@@ -22,2 +20,2 @@ var intersection = require('lodash.intersection');
 
-See the [documentation](https://lodash.com/docs#intersection) or [package source](https://github.com/lodash/lodash/blob/3.2.0-npm-packages/lodash.intersection) for more details.
+See the [documentation](https://lodash.com/docs#intersection) or [package source](https://github.com/lodash/lodash/blob/4.0.0-npm-packages/lodash.intersection) for more details.

New alerts

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

11457

increased by74.25%

Lines of code

302

increased by172.07%

Worsened metrics

Dependency count

6

increased by50%

Number of lines in readme file

19

decreased by-9.52%

Number of medium supply chain risk alerts

1

increased byInfinity%

Dependency changes

• + Addedlodash._arrayincludes@^3.0.0

• + Addedlodash._arrayincludeswith@^3.0.0

• + Addedlodash._arraymap@^3.0.0

• + Addedlodash._cachehas@^3.0.0

• + Addedlodash._setcache@^3.0.0

• + Addedlodash.rest@^4.0.0

• + Addedlodash._arraymap@3.0.0(transitive)

• + Addedlodash.rest@4.0.5(transitive)

• - Removedlodash._baseindexof@^3.0.0

• - Removedlodash._cacheindexof@^3.0.0

• - Removedlodash._createcache@^3.0.0

• - Removedlodash.restparam@^3.0.0

• - Removedlodash._baseindexof@3.1.0(transitive)

• - Removedlodash._cacheindexof@3.0.2(transitive)

• - Removedlodash._createcache@3.1.2(transitive)

• - Removedlodash._getnative@3.9.1(transitive)

• - Removedlodash.restparam@3.6.1(transitive)