Add zenkaku

README.md

@@ -61,6 +61,10 @@ Put current timestamp to the `t` query parameter
 
 Reopen currently playing music as video in normal YouTube
 
+### [入力中の値を全角に変換](https://raw.githubusercontent.com/mkobayashime/bookmarklets/main/dist/zenkaku.js)
+
+フォームなどで入力欄に入力中の値のうち、半角の数値などを全角に変換します
+
 ### [調整さん I'm free](https://raw.githubusercontent.com/mkobayashime/bookmarklets/main/dist/chouseisanImFree.js)
 
 調整さんの全日程候補で○を選択します

src/zenkaku.ts

@@ -0,0 +1,20 @@
+/**
+ * @title 入力中の値を全角に変換
+ * @description フォームなどで入力欄に入力中の値のうち、半角の数値などを全角に変換します
+ */
+
+const toZenkaku = (str: string) =>
+	str
+		.replaceAll(/[A-Za-z0-9]/g, (s: string) =>
+			String.fromCharCode(s.charCodeAt(0) + 0xfee0),
+		)
+		.replaceAll(" ", "　")
+		.replaceAll("-", "－");
+
+void (() => {
+	const { activeElement } = document;
+
+	if (!(activeElement instanceof HTMLInputElement)) return;
+
+	activeElement.value = toZenkaku(activeElement.value);
+})();