| /** |
| * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`, |
| * without support for callback shorthands and `this` binding, which iterates |
| * over `collection` using the provided `eachFunc`. |
| * |
| * @private |
| * @param {Array|Object|string} collection The collection to search. |
| * @param {Function} predicate The function invoked per iteration. |
| * @param {Function} eachFunc The function to iterate over `collection`. |
| * @param {boolean} [retKey] Specify returning the key of the found element |
| * instead of the element itself. |
| * @returns {*} Returns the found element or its key, else `undefined`. |
| */ |
| function baseFind(collection, predicate, eachFunc, retKey) { |
| var result; |
| eachFunc(collection, function(value, key, collection) { |
| if (predicate(value, key, collection)) { |
| result = retKey ? key : value; |
| return false; |
| } |
| }); |
| return result; |
| } |
| |
| module.exports = baseFind; |