bbo/es/drop_right_while.js

bbo is a utility library of zero dependencies for javascript.

import './get_tag.js';
import './is_array.js';
import './is_string.js';
import './is_map.js';
import './is_set.js';
import size from './size.js';

/**
 * Removes elements from the end of an array until the passed function returns true,
 * Returns the remaining elements in the array.
 */
function dropRightWhile(arr, func) {
  var rightIndex = size(arr);

  while (rightIndex-- && !func(arr[rightIndex])) {
  }

  return arr.slice(0, rightIndex + 1);
}

export default dropRightWhile;