The given data looks like this:
const products = [
{
name: "car",
subArr: ["4", "200", "599.4", "4444"]
},
{
name: "tv",
subArr: ["44477", "50", "579.2", "3232"]
},
{
name: "glass",
subArr: ["2121.1", "6347", "8867", "90.01"]
}
];
We need to findout the maximum value out of all subArr
Solution
const maxArr = products.map(product => Math.max(...product.subArr));
const maxValue = Math.max(...maxArr);
// output the maximum value