function getRandomInt(max) { return Math.floor(Math.random() * max);
}
var itemsA = [];
var itemsB = [];
for (let i = 0; i < 1000; i++) { itemsA.push(getRandomInt(500));
itemsB.push(getRandomInt(500));
}
itemsA.sort(function(a,b){ return a-b; });itemsB.sort(function(a,b){ return a-b; });
function* sortedDifference(sortedIterableA, sortedIterableB) { let iteratorA = sortedIterableA[Symbol.iterator]();
let iteratorB = sortedIterableB[Symbol.iterator]();
let itemA = iteratorA.next();
let itemB = iteratorB.next();
while (!itemA.done) { if (itemB.done) { yield itemA.value;
yield* iteratorA;
return;
}
if (itemA.value < itemB.value) { yield itemA.value;
itemA = iteratorA.next();
} else { if (! (itemB.value < itemA.value)) { itemA = iteratorA.next();
}
itemB = iteratorB.next();
}
}
}
function difference(setA, setB) { let _difference = new Set(setA)
for (let elem of setB) { _difference.delete(elem)
}
return Array.from(_difference).sort();
}
