first commit

mangashelf-server/node_modules/@honeo/check/_is/is-same-day.mjs

@@ -0,0 +1,32 @@
+import isDate from './is-date.mjs';
+
+/*
+	引数のdateインスタンスが同じ日か
+
+		args
+			1...: date
+		result
+			boolean
+*/
+function isSameday(...arr_date){
+	let str_baseDateText;
+
+	for(let date of arr_date ){
+		if( !isDate(date) ){
+			throw new TypeError(`Invalid arguments: ${index}`);
+		}
+
+		if( !str_baseDateText ){
+			str_baseDateText = date.toDateString();
+		}else{
+			const str_dateText = date.toDateString();
+			if(str_baseDateText!==str_dateText){
+				return false;
+			}
+		}
+	}
+
+	return true;
+}
+
+export default isSameday;