⏱ 0:01est. 3 min

Subsets

// https://leetcode.com/problems/subsets/
let nums = [1,2,3]

const result = [[]];
for (const num of nums) {
    // result.push(
    let data  =  result.map(x => {
        // console.log('x', x, num)
        return [...x, num]
    })
    console.log(...data)
    result.push(...data)
        // console.log(data);
    // )
}

console.log(result)