summaryrefslogtreecommitdiff
path: root/bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js
diff options
context:
space:
mode:
Diffstat (limited to 'bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js')
-rw-r--r--bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js77
1 files changed, 77 insertions, 0 deletions
diff --git a/bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js b/bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js
new file mode 100644
index 00000000..3597294a
--- /dev/null
+++ b/bin/wiki/ImportarDesdeURL/node_modules/lodash/isEmpty.js
@@ -0,0 +1,77 @@
+var baseKeys = require('./_baseKeys'),
+ getTag = require('./_getTag'),
+ isArguments = require('./isArguments'),
+ isArray = require('./isArray'),
+ isArrayLike = require('./isArrayLike'),
+ isBuffer = require('./isBuffer'),
+ isPrototype = require('./_isPrototype'),
+ isTypedArray = require('./isTypedArray');
+
+/** `Object#toString` result references. */
+var mapTag = '[object Map]',
+ setTag = '[object Set]';
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * 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`.
+ * @example
+ *
+ * _.isEmpty(null);
+ * // => true
+ *
+ * _.isEmpty(true);
+ * // => true
+ *
+ * _.isEmpty(1);
+ * // => true
+ *
+ * _.isEmpty([1, 2, 3]);
+ * // => false
+ *
+ * _.isEmpty({ 'a': 1 });
+ * // => false
+ */
+function isEmpty(value) {
+ if (value == null) {
+ return true;
+ }
+ if (isArrayLike(value) &&
+ (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
+ isBuffer(value) || isTypedArray(value) || isArguments(value))) {
+ return !value.length;
+ }
+ var tag = getTag(value);
+ if (tag == mapTag || tag == setTag) {
+ return !value.size;
+ }
+ if (isPrototype(value)) {
+ return !baseKeys(value).length;
+ }
+ for (var key in value) {
+ if (hasOwnProperty.call(value, key)) {
+ return false;
+ }
+ }
+ return true;
+}
+
+module.exports = isEmpty;