time-to-botec

Benchmark sampling in different programming languages
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_baseFindKey.js (747B)

      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;