time-to-botec

Benchmark sampling in different programming languages
Log | Files | Refs | README

flattenDepth.js (787B)

      1 var baseFlatten = require('./_baseFlatten'),
      2     toInteger = require('./toInteger');
      3 
      4 /**
      5  * Recursively flatten `array` up to `depth` times.
      6  *
      7  * @static
      8  * @memberOf _
      9  * @since 4.4.0
     10  * @category Array
     11  * @param {Array} array The array to flatten.
     12  * @param {number} [depth=1] The maximum recursion depth.
     13  * @returns {Array} Returns the new flattened array.
     14  * @example
     15  *
     16  * var array = [1, [2, [3, [4]], 5]];
     17  *
     18  * _.flattenDepth(array, 1);
     19  * // => [1, 2, [3, [4]], 5]
     20  *
     21  * _.flattenDepth(array, 2);
     22  * // => [1, 2, 3, [4], 5]
     23  */
     24 function flattenDepth(array, depth) {
     25   var length = array == null ? 0 : array.length;
     26   if (!length) {
     27     return [];
     28   }
     29   depth = depth === undefined ? 1 : toInteger(depth);
     30   return baseFlatten(array, depth);
     31 }
     32 
     33 module.exports = flattenDepth;