JAVASCRIPT   12

fill.js

Guest on 11th June 2021 03:48:34 AM

  1. var baseFill = require('../internal/baseFill'),
  2.     isIterateeCall = require('../internal/isIterateeCall');
  3.  
  4. /**
  5.  * Fills elements of `array` with `value` from `start` up to, but not
  6.  * including, `end`.
  7.  *
  8.  * **Note:** This method mutates `array`.
  9.  *
  10.  * @static
  11.  * @memberOf _
  12.  * @category Array
  13.  * @param {Array} array The array to fill.
  14.  * @param {*} value The value to fill `array` with.
  15.  * @param {number} [start=0] The start position.
  16.  * @param {number} [end=array.length] The end position.
  17.  * @returns {Array} Returns `array`.
  18.  * @example
  19.  *
  20.  * var array = [1, 2, 3];
  21.  *
  22.  * _.fill(array, 'a');
  23.  * console.log(array);
  24.  * // => ['a', 'a', 'a']
  25.  *
  26.  * _.fill(Array(3), 2);
  27.  * // => [2, 2, 2]
  28.  *
  29.  * _.fill([4, 6, 8], '*', 1, 2);
  30.  * // => [4, '*', 8]
  31.  */
  32. function fill(array, value, start, end) {
  33.   var length = array ? array.length : 0;
  34.   if (!length) {
  35.     return [];
  36.   }
  37.   if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
  38.     start = 0;
  39.     end = length;
  40.   }
  41.   return baseFill(array, value, start, end);
  42. }
  43.  
  44. module.exports = fill;

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