ndarray not getting value as expected. #37

im trying to create a list with some specific rules.
ex ) x :2, y:5
0, 0
0, 1
0, 2
0, 3
0, 4
1, 0
1, 1
1, 2
1, 3
1, 4

it should have 2 sets, y should be repeated for x times.
so the table shape should be [2, x * y].
1D data should look like [0, 1, 0, 2, 0, 3, 0, 4, 1, 0, 1, 1, 1, 2, 1, 3, 1, 4]

it works fine until here but when i try to get myNdarray.get(0, 5), i expected 1 but gives 2 instead.

    let x = 2;
    let y = 4;

    let datArr = []
    for (let xx = 0; xx < x; xx++){
        for (let yy = 0; yy < y; yy++){
            datArr.push(xx)
            datArr.push(yy)
            // narr.
        }
    }
    let narr = ndarray(new Float32Array(datArr), [2, x*y]);
    console.log(narr)
    console.log(narr.get(0, 5))
    console.log(narr.get(1, 5))

here is my test code, and

this is the log

NdArrayTest.js:35 View2dfloat32 {data: Float32Array(20), shape: Array(2), stride: Array(2), offset: 0}data: Float32Array(20) [0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 1, 0, 1, 1, 1, 2, 1, 3, 1, 4]offset: 0shape: (2) [2, 10]stride: (2) [10, 1]order: (...)size: (...)proto: Object
NdArrayTest.js:36 2
NdArrayTest.js:37 2

what is happening?
am i using the wrong code?