Get unflattened filtered Multidimensional Array in Javascript
You can use map and filter
const W = [[45, 60, 15, 35],[45, 55, 75],[12, 34, 80, 65, 90]];
const median = [ 40, 55, 65 ];
const op = W.map(( inp, index) => inp.filter(e => e < median[index]))
console.log(op)Why my code is not working
You're pushing values directly into array inside inner for loop, you need to create a temporary array and push value in it in inner loop and push the temporary to Wmin in outer loop
const W = [[45, 60, 15, 35],[45, 55, 75],[12, 34, 80, 65, 90]];
const median = [ 40, 55, 65 ];
const Wmin = [];
for (let j = 0; j < W.length; j++) {
let temp = []
for (let k = 0; k < W[j].length; k++) {
if (W[j][k] < median[j]) {
temp.push(W[j][k]);
}
}
Wmin.push(temp)
}
console.log(Wmin)