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2025-08-12 15:04:01 +08:00
parent df3f5f5269
commit 6708fb8eeb
544 changed files with 75169 additions and 17 deletions
@@ -0,0 +1,23 @@
+export function mod10(number){
+	var sum = 0;
+	for(var i = 0; i < number.length; i++){
+		var n = parseInt(number[i]);
+		if((i + number.length) % 2 === 0){
+			sum += n;
+		}
+		else{
+			sum += (n * 2) % 10 + Math.floor((n * 2) / 10);
+		}
+	}
+	return (10 - (sum % 10)) % 10;
+}
+
+export function mod11(number){
+	var sum = 0;
+	var weights = [2, 3, 4, 5, 6, 7];
+	for(var i = 0; i < number.length; i++){
+		var n = parseInt(number[number.length - 1 - i]);
+		sum += weights[i % weights.length] * n;
+	}
+	return (11 - (sum % 11)) % 11;
+}