time-to-botec

Benchmark sampling in different programming languages
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_overRest.js (1096B)

      1 var apply = require('./_apply');
      2 
      3 /* Built-in method references for those with the same name as other `lodash` methods. */
      4 var nativeMax = Math.max;
      5 
      6 /**
      7  * A specialized version of `baseRest` which transforms the rest array.
      8  *
      9  * @private
     10  * @param {Function} func The function to apply a rest parameter to.
     11  * @param {number} [start=func.length-1] The start position of the rest parameter.
     12  * @param {Function} transform The rest array transform.
     13  * @returns {Function} Returns the new function.
     14  */
     15 function overRest(func, start, transform) {
     16   start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
     17   return function() {
     18     var args = arguments,
     19         index = -1,
     20         length = nativeMax(args.length - start, 0),
     21         array = Array(length);
     22 
     23     while (++index < length) {
     24       array[index] = args[start + index];
     25     }
     26     index = -1;
     27     var otherArgs = Array(start + 1);
     28     while (++index < start) {
     29       otherArgs[index] = args[index];
     30     }
     31     otherArgs[start] = transform(array);
     32     return apply(func, this, otherArgs);
     33   };
     34 }
     35 
     36 module.exports = overRest;