1234567891011121314151617181920212223242526272829 |
- // @ts-nocheck
- import isSymbol from "./isSymbol.js";
- /** Used to match property names within property paths. */
- const reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/;
- const 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 (Array.isArray(value)) {
- return false;
- }
- const type = typeof value;
- if (type === "number" ||
- type === "boolean" ||
- value == null ||
- isSymbol(value)) {
- return true;
- }
- return (reIsPlainProp.test(value) ||
- !reIsDeepProp.test(value) ||
- (object != null && value in Object(object)));
- }
- export default isKey;
|