Run results for: two dimensional array row-major vs. column-major order

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Browser: Chrome 113

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
row-major	0.4 Ops/sec
column-major	0.4 Ops/sec

Tests:

row-major
let array2d = new Array(1000); for (let i = 0; i < array2d.length; i++) { let arrayRow = []; for (let j = 0; j < 1000; j++) { arrayRow.push(j * i + 1); } array2d[i] = arrayRow; } let total = 0; for (let i = 0; i < array2d.length; i++) { for (let j = 0; j < array2d[i].length; j++) { console.log(array2d[i][j]); total = total + array2d[i][j]; } } console.log(total);
column-major
let array2d = new Array(1000); for (let i = 0; i < array2d.length; i++) { let arrayRow = []; for (let j = 0; j < 1000; j++) { arrayRow.push(j * i + 1); } array2d[i] = arrayRow; } let total = 0; for (let i = 0; i < array2d.length; i++) { for (let j = 0; j < array2d[i].length; j++) { console.log(array2d[j][i]); total = total + array2d[j][i]; } } console.log(total);