All files dropLast.ts

100% Statements 6/6
100% Branches 0/0
100% Functions 2/2
100% Lines 6/6

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 381x                                                       1x 1x       1x 1x 1x    
import { purry } from './purry';
 
/**
 * Removes last `n` elements from the `array`.
 * @param array the target array
 * @param n the number of elements to skip
 * @signature
 *    R.dropLast(array, n)
 * @example
 *    R.dropLast([1, 2, 3, 4, 5], 2) // => [1, 2, 3]
 * @data_first
 * @category Array
 */
export function dropLast<T>(array: T[], n: number): T[];
 
/**
 * Removes last `n` elements from the `array`.
 * @param array the target array
 * @param n the number of elements to skip
 * @signature
 *    R.dropLast(n)(array)
 * @example
 *    R.dropLast(2)([1, 2, 3, 4, 5]) // => [1, 2, 3]
 * @data_last
 * @category Array
 */
export function dropLast<T>(n: number): (array: T[]) => T[];
 
export function dropLast() {
  return purry(_dropLast, arguments);
}
 
function _dropLast<T>(array: T[], n: number) {
  const copy = [...array];
  copy.splice(-n);
  return copy;
}