const factory = length => Array.apply(null, { length })
const craeteArr = factory(10).map((item, index) => index)
const arr1 = factory(10).map((item, index) => craeteArr)
test:
for(let i = 0; i < arr1.length; i++) {
for(let j = 0; j < arr1[i].length; j++) {
if (i * 10 + j === 88) break test
console.log(i * 10 + j)
}
}