lodash/_basePullAt.js

import baseUnset from './_baseUnset.js';
import isIndex from './_isIndex.js';

/** Built-in value references. */
const splice = Array.prototype.splice;

/**
 * The base implementation of `pullAt` without support for individual
 * indexes or capturing the removed elements.
 *
 * @private
 * @param {Array} array The array to modify.
 * @param {number[]} indexes The indexes of elements to remove.
 * @returns {Array} Returns `array`.
 */
function basePullAt(array, indexes) {
  let length = array ? indexes.length : 0;
  const lastIndex = length - 1;

  while (length--) {
    let previous;
    const index = indexes[length];
    if (length == lastIndex || index !== previous) {
      previous = index;
      if (isIndex(index)) {
        splice.call(array, index, 1);
      } else {
        baseUnset(array, index);
      }
    }
  }
  return array;
}

export default basePullAt;