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Challenge 243: Rook Attack

curriculum/challenges/english/blocks/daily-coding-challenges-javascript/69b58ce40693f140c84c855c.md

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--description--

Given two strings for the location of two rooks on a chess board, determine if they can attack each other.

A standard chessboard is 8x8, with columns labeled A through H (left to right) and rows labeled 1 through 8 (bottom to top). It looks like this:

A8B8C8D8E8F8G8H8
A7B7C7D7E7F7G7H7
A6B6C6D6E6F6G6H6
A5B5C5D5E5F5G5H5
A4B4C4D4E4F4G4H4
A3B3C3D3E3F3G3H3
A2B2C2D2E2F2G2H2
A1B1C1D1E1F1G1H1

Rooks can move as many squares as they want in a horizontal or vertical direction. So if they are on the same row or column, they can attack each other.

--hints--

rookAttack("A1", "A8") should return true.

js
assert.isTrue(rookAttack("A1", "A8"));

rookAttack("B4", "F4") should return true.

js
assert.isTrue(rookAttack("B4", "F4"));

rookAttack("E3", "D4") should return false.

js
assert.isFalse(rookAttack("E3", "D4"));

rookAttack("H7", "F6") should return false.

js
assert.isFalse(rookAttack("H7", "F6"));

--seed--

--seed-contents--

js
function rookAttack(rook1, rook2) {

  return rook1;
}

--solutions--

js
function rookAttack(rook1, rook2) {
  return rook1[0] === rook2[0] || rook1[1] === rook2[1];
}