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Diffstat (limited to 'node_modules/lodash/findKey.js')
-rw-r--r-- | node_modules/lodash/findKey.js | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/node_modules/lodash/findKey.js b/node_modules/lodash/findKey.js new file mode 100644 index 0000000..cac0248 --- /dev/null +++ b/node_modules/lodash/findKey.js @@ -0,0 +1,44 @@ +var baseFindKey = require('./_baseFindKey'), + baseForOwn = require('./_baseForOwn'), + baseIteratee = require('./_baseIteratee'); + +/** + * This method is like `_.find` except that it returns the key of the first + * element `predicate` returns truthy for instead of the element itself. + * + * @static + * @memberOf _ + * @since 1.1.0 + * @category Object + * @param {Object} object The object to inspect. + * @param {Function} [predicate=_.identity] The function invoked per iteration. + * @returns {string|undefined} Returns the key of the matched element, + * else `undefined`. + * @example + * + * var users = { + * 'barney': { 'age': 36, 'active': true }, + * 'fred': { 'age': 40, 'active': false }, + * 'pebbles': { 'age': 1, 'active': true } + * }; + * + * _.findKey(users, function(o) { return o.age < 40; }); + * // => 'barney' (iteration order is not guaranteed) + * + * // The `_.matches` iteratee shorthand. + * _.findKey(users, { 'age': 1, 'active': true }); + * // => 'pebbles' + * + * // The `_.matchesProperty` iteratee shorthand. + * _.findKey(users, ['active', false]); + * // => 'fred' + * + * // The `_.property` iteratee shorthand. + * _.findKey(users, 'active'); + * // => 'barney' + */ +function findKey(object, predicate) { + return baseFindKey(object, baseIteratee(predicate, 3), baseForOwn); +} + +module.exports = findKey; |