lodash/internal/baseFill.js

/**
 * The base implementation of `_.fill` without an iteratee call guard.
 *
 * @private
 * @param {Array} array The array to fill.
 * @param {*} value The value to fill `array` with.
 * @param {number} [start=0] The start position.
 * @param {number} [end=array.length] The end position.
 * @returns {Array} Returns `array`.
 */
function baseFill(array, value, start, end) {
  var length = array.length;

  start = start == null ? 0 : (+start || 0);
  if (start < 0) {
    start = -start > length ? 0 : (length + start);
  }
  end = (typeof end == 'undefined' || end > length) ? length : (+end || 0);
  if (end < 0) {
    end += length;
  }
  length = start > end ? 0 : end >>> 0;
  start >>>= 0;

  while (start < length) {
    array[start++] = value;
  }
  return array;
}

export default baseFill;