Version 1

[yaffs-website] / node_modules / grunt-uncss / node_modules / lodash / _isKey.js

diff --git a/node_modules/grunt-uncss/node_modules/lodash/_isKey.js b/node_modules/grunt-uncss/node_modules/lodash/_isKey.js
new file mode 100644 (file)
index 0000000..ff08b06
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+++ b/node_modules/grunt-uncss/node_modules/lodash/_isKey.js
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+var isArray = require('./isArray'),
+    isSymbol = require('./isSymbol');
+
+/** Used to match property names within property paths. */
+var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
+    reIsPlainProp = /^\w*$/;
+
+/**
+ * Checks if `value` is a property name and not a property path.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {Object} [object] The object to query keys on.
+ * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
+ */
+function isKey(value, object) {
+  if (isArray(value)) {
+    return false;
+  }
+  var type = typeof value;
+  if (type == 'number' || type == 'symbol' || type == 'boolean' ||
+      value == null || isSymbol(value)) {
+    return true;
+  }
+  return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
+    (object != null && value in Object(object));
+}
+
+module.exports = isKey;