JSFiddle - React, Tailwind, and code Playground
JavaScript
const arr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11];
const arr1 = [];
const arr2 = [];
for (let i = 0; i < arr.length; i += 4) {
for (let k = i; k <=2; k++ ) {
arr1.push(arr[k])
};
for (let m = i+2; m <=4; m++ ) {
arr2.push(arr[m])
};
console.log(arr1, arr2);
arr1.length = 0;
arr2.length = 0;
}