// perform subset operation
// true if all elements of set b is in set a
function subset(setA, setB) {
for (let i of setB) {
if (!setA.has(i)) {
return false
}
}
return true
}
// two sets of fruits
let setA = new Set(['apple', 'mango', 'orange']);
let setB = new Set(['apple', 'orange']);
let result = subset(setA, setB);
console.log(result);