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nicothin/some.js

Last active November 1, 2022 15:46
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  1. nicothin revised this gist Nov 1, 2022. No changes.
  2. nicothin created this gist Nov 1, 2022.
    24 changes: 24 additions & 0 deletions some.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,24 @@
    const arr =[
    [1, 2, 3, 4, 5, 6, 7, 8, 9, ],
    [10, 20, 30, 40, 50, 60, 70, 80, 90, ],
    [11, 12, 13, 14, 15, 16, 17, 18, 19, ],
    [21, 22, 23, 24, 25, 26, 27, 28, 29, ],
    [31, 32, 33, 34, 35, 36, 37, 38, 39, ],
    ];

    const getMatrixFragment = (
    matrix = [[]],
    coords = {startY: 0, endY: 0, startX: 0, endX: 0},
    ) => matrix
    .slice(coords.startY, coords.endY + 1)
    .map(i => i.slice(coords.startX, coords.endX + 1));

    console.log(getMatrixFragment(
    arr,
    {
    startX: 2,
    startY: 0,
    endX: 5,
    endY: 4,
    }
    ));