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Bump to v4.7.0.

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John-David Dalton
2016-03-26 00:00:01 -07:00
parent 6c2960211f
commit d46bcaa98d
389 changed files with 3333 additions and 1627 deletions
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36
isEmpty.js
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@@ -1,4 +1,8 @@
define(['./isArguments', './isArray', './isArrayLike', './isFunction', './isString'], function(isArguments, isArray, isArrayLike, isFunction, isString) {
define(['./_getTag', './isArguments', './isArray', './isArrayLike', './isBuffer', './isFunction', './isObjectLike', './isString', './keys'], function(getTag, isArguments, isArray, isArrayLike, isBuffer, isFunction, isObjectLike, isString, keys) {
/** `Object#toString` result references. */
var mapTag = '[object Map]',
setTag = '[object Set]';
/** Used for built-in method references. */
var objectProto = Object.prototype;
@@ -6,13 +10,25 @@ define(['./isArguments', './isArray', './isArrayLike', './isFunction', './isStri
/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;
/** Built-in value references. */
var propertyIsEnumerable = objectProto.propertyIsEnumerable;
/** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
/**
* Checks if `value` is an empty collection or object. A value is considered
* empty if it's an `arguments` object, array, string, or jQuery-like collection
* with a length of `0` or has no own enumerable properties.
* Checks if `value` is an empty object, collection, map, or set.
*
* Objects are considered empty if they have no own enumerable string keyed
* properties.
*
* Array-like values such as `arguments` objects, arrays, buffers, strings, or
* jQuery-like collections are considered empty if they have a `length` of `0`.
* Similarly, maps and sets are considered empty if they have a `size` of `0`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is empty, else `false`.
@@ -35,16 +51,22 @@ define(['./isArguments', './isArray', './isArrayLike', './isFunction', './isStri
*/
function isEmpty(value) {
if (isArrayLike(value) &&
(isArray(value) || isString(value) ||
isFunction(value.splice) || isArguments(value))) {
(isArray(value) || isString(value) || isFunction(value.splice) ||
isArguments(value) || isBuffer(value))) {
return !value.length;
}
if (isObjectLike(value)) {
var tag = getTag(value);
if (tag == mapTag || tag == setTag) {
return !value.size;
}
}
for (var key in value) {
if (hasOwnProperty.call(value, key)) {
return false;
}
}
return true;
return !(nonEnumShadows && keys(value).length);
}
return isEmpty;