JS one-liner
メモ感覚で...更新します...
forEach&map
とりあえずまずは、かけ算九九表...
one-liner
[..."123456789"].forEach((x) => console.log( [..."123456789"].map(y => x*y)))
> (9) [1, 2, 3, 4, 5, 6, 7, 8, 9]
> (9) [2, 4, 6, 8, 10, 12, 14, 16, 18]
> (9) [3, 6, 9, 12, 15, 18, 21, 24, 27]
> (9) [4, 8, 12, 16, 20, 24, 28, 32, 36]
> (9) [5, 10, 15, 20, 25, 30, 35, 40, 45]
> (9) [6, 12, 18, 24, 30, 36, 42, 48, 54]
> (9) [7, 14, 21, 28, 35, 42, 49, 56, 63]
> (9) [8, 16, 24, 32, 40, 48, 56, 64, 72]
> (9) [9, 18, 27, 36, 45, 54, 63, 72, 81]
inputのtype:text tagのみを一括でクリアにする
one-liner
for(let item of Object.values(document.getElementsByTagName('input'))){if (item.type == "text") item.value=""}
次の更新を待たれよ...