From d4935b6e7c45157ee58e4857fb4d10136e8d4a5f Mon Sep 17 00:00:00 2001
From: Elijah Duffy <elijah@thatoneguy.ca>
Date: Tue, 22 Jul 2025 15:38:58 -0700
Subject: [PATCH] add prefixZero utility

---
 src/lib/index.ts |  3 ++-
 src/lib/util.ts  | 18 +++++++++++++++++-
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/src/lib/index.ts b/src/lib/index.ts
index c25c5df..7ff939d 100644
--- a/src/lib/index.ts
+++ b/src/lib/index.ts
@@ -32,7 +32,8 @@ export {
 	getLabel,
 	getValue,
 	defaultIconProps,
-	capitalizeFirstLetter
+	capitalizeFirstLetter,
+	prefixZero
 } from './util';
 export {
 	type ToolbarToggleState,
diff --git a/src/lib/util.ts b/src/lib/util.ts
index 662eeca..94528ff 100644
--- a/src/lib/util.ts
+++ b/src/lib/util.ts
@@ -88,8 +88,24 @@ export function targetMust<T extends HTMLElement>(event: Event): T {
 	return target;
 }
 
-/** capitalizeFirstLetter capitalizes the first letter of a string */
+/**
+ * capitalizeFirstLetter capitalizes the first letter of a string
+ * @param str The string to capitalize
+ * @returns The string with the first letter capitalized and all others lowercase
+ */
 export const capitalizeFirstLetter = (str: string): string => {
 	const lower = str.toLowerCase();
 	return lower.charAt(0).toUpperCase() + lower.slice(1);
 };
+
+/**
+ * prefixZero adds a leading zero to the string if it is less than 10
+ * @param str The string to prefix
+ * @returns The string with a leading zero if it was only 1 digit long
+ */
+export const prefixZero = (str: string): string => {
+	if (str.length === 1) {
+		return '0' + str;
+	}
+	return str;
+};