1
|
/**
|
2
|
* The base implementation of methods like `_.findKey` and `_.findLastKey`,
|
3
|
* without support for iteratee shorthands, which iterates over `collection`
|
4
|
* using `eachFunc`.
|
5
|
*
|
6
|
* @private
|
7
|
* @param {Array|Object} collection The collection to inspect.
|
8
|
* @param {Function} predicate The function invoked per iteration.
|
9
|
* @param {Function} eachFunc The function to iterate over `collection`.
|
10
|
* @returns {*} Returns the found element or its key, else `undefined`.
|
11
|
*/
|
12
|
function baseFindKey(collection, predicate, eachFunc) {
|
13
|
var result;
|
14
|
eachFunc(collection, function(value, key, collection) {
|
15
|
if (predicate(value, key, collection)) {
|
16
|
result = key;
|
17
|
return false;
|
18
|
}
|
19
|
});
|
20
|
return result;
|
21
|
}
|
22
|
|
23
|
module.exports = baseFindKey;
|