time-to-botec

Benchmark sampling in different programming languages
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_createBaseEach.js (886B)

      1 var isArrayLike = require('./isArrayLike');
      2 
      3 /**
      4  * Creates a `baseEach` or `baseEachRight` function.
      5  *
      6  * @private
      7  * @param {Function} eachFunc The function to iterate over a collection.
      8  * @param {boolean} [fromRight] Specify iterating from right to left.
      9  * @returns {Function} Returns the new base function.
     10  */
     11 function createBaseEach(eachFunc, fromRight) {
     12   return function(collection, iteratee) {
     13     if (collection == null) {
     14       return collection;
     15     }
     16     if (!isArrayLike(collection)) {
     17       return eachFunc(collection, iteratee);
     18     }
     19     var length = collection.length,
     20         index = fromRight ? length : -1,
     21         iterable = Object(collection);
     22 
     23     while ((fromRight ? index-- : ++index < length)) {
     24       if (iteratee(iterable[index], index, iterable) === false) {
     25         break;
     26       }
     27     }
     28     return collection;
     29   };
     30 }
     31 
     32 module.exports = createBaseEach;