Function reverse

Parameters

• array: MutableArrayLike<T>

  The mutable array-like object of interest.

• start: number = 0

  The index of the first element in the range to be reversed, inclusive. The default value is 0. Negative values are taken as an offset from the end of the array.

• stop: number = -1

  The index of the last element in the range to be reversed, inclusive. The default value is -1. Negative values are taken as an offset from the end of the array.

  Complexity

  Linear.

  Undefined Behavior

  A start or stop index which is non-integral.

  Example

  import { ArrayExt } from '@lumino/algorithm';
  
  let data = [0, 1, 2, 3, 4];
  ArrayExt.reverse(data, 1, 3);  // [0, 3, 2, 1, 4]
  ArrayExt.reverse(data, 3);     // [0, 3, 2, 4, 1]
  ArrayExt.reverse(data);        // [1, 4, 2, 3, 0]