mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-04 08:57:49 +00:00
Bump to v4.1.0.
This commit is contained in:
@@ -1,4 +1,4 @@
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# lodash.isempty v4.0.0
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# lodash.isempty v4.1.0
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The [lodash](https://lodash.com/) method `_.isEmpty` exported as a [Node.js](https://nodejs.org/) module.
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@@ -15,4 +15,4 @@ In Node.js:
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var isEmpty = require('lodash.isempty');
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```
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See the [documentation](https://lodash.com/docs#isEmpty) or [package source](https://github.com/lodash/lodash/blob/4.0.0-npm-packages/lodash.isempty) for more details.
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See the [documentation](https://lodash.com/docs#isEmpty) or [package source](https://github.com/lodash/lodash/blob/4.1.0-npm-packages/lodash.isempty) for more details.
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@@ -1,27 +1,166 @@
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/**
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* lodash 4.0.0 (Custom Build) <https://lodash.com/>
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* lodash 4.1.0 (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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* Available under MIT license <https://lodash.com/license>
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*/
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var keys = require('lodash.keys'),
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size = require('lodash.size');
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/** Used as references for various `Number` constants. */
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var MAX_SAFE_INTEGER = 9007199254740991;
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/** `Object#toString` result references. */
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var funcTag = '[object Function]',
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genTag = '[object GeneratorFunction]';
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var argsTag = '[object Arguments]',
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funcTag = '[object Function]',
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genTag = '[object GeneratorFunction]',
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stringTag = '[object String]';
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/** Used for built-in method references. */
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var objectProto = global.Object.prototype;
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/** Used to check objects for own properties. */
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var hasOwnProperty = objectProto.hasOwnProperty;
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/**
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* Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
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* of values.
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*/
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var objectToString = objectProto.toString;
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/** Built-in value references. */
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var propertyIsEnumerable = objectProto.propertyIsEnumerable;
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/**
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* The base implementation of `_.property` without support for deep paths.
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*
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* @private
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* @param {string} key The key of the property to get.
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* @returns {Function} Returns the new function.
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*/
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function baseProperty(key) {
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return function(object) {
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return object == null ? undefined : object[key];
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};
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}
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/**
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* Gets the "length" property value of `object`.
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*
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* **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
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* that affects Safari on at least iOS 8.1-8.3 ARM64.
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*
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* @private
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* @param {Object} object The object to query.
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* @returns {*} Returns the "length" value.
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*/
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var getLength = baseProperty('length');
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/**
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* Checks if `value` is likely an `arguments` object.
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*
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* @static
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* @memberOf _
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
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* @example
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*
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* _.isArguments(function() { return arguments; }());
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* // => true
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*
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* _.isArguments([1, 2, 3]);
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* // => false
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*/
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function isArguments(value) {
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// Safari 8.1 incorrectly makes `arguments.callee` enumerable in strict mode.
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return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
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(!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
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}
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/**
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* Checks if `value` is classified as an `Array` object.
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*
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* @static
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* @memberOf _
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* @type Function
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
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* @example
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*
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* _.isArray([1, 2, 3]);
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* // => true
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*
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* _.isArray(document.body.children);
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* // => false
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*
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* _.isArray('abc');
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* // => false
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*
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* _.isArray(_.noop);
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* // => false
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*/
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var isArray = Array.isArray;
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/**
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* Checks if `value` is array-like. A value is considered array-like if it's
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* not a function and has a `value.length` that's an integer greater than or
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* equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
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*
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* @static
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* @memberOf _
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* @type Function
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is array-like, else `false`.
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* @example
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*
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* _.isArrayLike([1, 2, 3]);
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* // => true
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*
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* _.isArrayLike(document.body.children);
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* // => true
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*
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* _.isArrayLike('abc');
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* // => true
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*
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* _.isArrayLike(_.noop);
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* // => false
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*/
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function isArrayLike(value) {
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return value != null &&
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!(typeof value == 'function' && isFunction(value)) && isLength(getLength(value));
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}
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/**
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* This method is like `_.isArrayLike` except that it also checks if `value`
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* is an object.
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*
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* @static
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* @memberOf _
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* @type Function
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is an array-like object, else `false`.
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* @example
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*
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* _.isArrayLikeObject([1, 2, 3]);
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* // => true
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*
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* _.isArrayLikeObject(document.body.children);
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* // => true
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*
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* _.isArrayLikeObject('abc');
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* // => false
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*
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* _.isArrayLikeObject(_.noop);
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* // => false
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*/
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function isArrayLikeObject(value) {
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return isObjectLike(value) && isArrayLike(value);
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}
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/**
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* Checks if `value` is empty. A value is considered empty unless it's an
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* `arguments` object, array, string, or jQuery-like collection with a length
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@@ -50,9 +189,16 @@ var objectToString = objectProto.toString;
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* // => false
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*/
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function isEmpty(value) {
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return (!isObjectLike(value) || isFunction(value.splice))
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? !size(value)
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: !keys(value).length;
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if (isArrayLike(value) &&
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(isArray(value) || isString(value) || isFunction(value.splice) || isArguments(value))) {
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return !value.length;
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}
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for (var key in value) {
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if (hasOwnProperty.call(value, key)) {
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return false;
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}
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}
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return true;
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}
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/**
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@@ -79,6 +225,34 @@ function isFunction(value) {
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return tag == funcTag || tag == genTag;
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}
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/**
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* Checks if `value` is a valid array-like length.
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*
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* **Note:** This function is loosely based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
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*
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* @static
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* @memberOf _
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
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* @example
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*
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* _.isLength(3);
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* // => true
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*
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* _.isLength(Number.MIN_VALUE);
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* // => false
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*
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* _.isLength(Infinity);
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* // => false
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*
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* _.isLength('3');
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* // => false
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*/
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function isLength(value) {
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return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
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}
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/**
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* Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
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* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
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@@ -103,8 +277,6 @@ function isFunction(value) {
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* // => false
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*/
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function isObject(value) {
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// Avoid a V8 JIT bug in Chrome 19-20.
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// See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
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var type = typeof value;
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return !!value && (type == 'object' || type == 'function');
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}
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@@ -136,4 +308,25 @@ function isObjectLike(value) {
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return !!value && typeof value == 'object';
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}
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/**
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* Checks if `value` is classified as a `String` primitive or object.
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*
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* @static
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* @memberOf _
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* @category Lang
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
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* @example
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*
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* _.isString('abc');
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* // => true
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*
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* _.isString(1);
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* // => false
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*/
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function isString(value) {
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return typeof value == 'string' ||
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(!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
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}
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module.exports = isEmpty;
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@@ -1,11 +1,11 @@
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{
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"name": "lodash.isempty",
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"version": "4.0.0",
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"version": "4.1.0",
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"description": "The lodash method `_.isEmpty` exported as a module.",
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"homepage": "https://lodash.com/",
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"icon": "https://lodash.com/icon.svg",
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"license": "MIT",
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"keywords": "lodash, lodash-modularized, stdlib, util, isempty",
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"keywords": "lodash-modularized, isempty",
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"author": "John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
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"contributors": [
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"John-David Dalton <john.david.dalton@gmail.com> (http://allyoucanleet.com/)",
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@@ -13,9 +13,5 @@
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"Mathias Bynens <mathias@qiwi.be> (https://mathiasbynens.be/)"
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],
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"repository": "lodash/lodash",
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"scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" },
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"dependencies": {
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"lodash.keys": "^4.0.0",
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"lodash.size": "^4.0.0"
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}
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"scripts": { "test": "echo \"See https://travis-ci.org/lodash/lodash-cli for testing details.\"" }
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}
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