From d2523812587e6f4c828958692ab921bdb95c9a37 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Fri, 6 Dec 2024 04:42:39 -0800
Subject: [PATCH] Clarify failure message when testing existence.

---
 GLOBALS.mjs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/GLOBALS.mjs b/GLOBALS.mjs
index fee5333..0ed94e8 100644
--- a/GLOBALS.mjs
+++ b/GLOBALS.mjs
@@ -60,7 +60,8 @@ export const assert = {
 	},
 	exists: (a) => {
 		if (a == null) {
-			throw new Error(`argument is ${typeof a}`)
+			const type = /^[aeiou]/i.test(typeof a) ? `an ${typeof a}` : `a ${typeof a}`
+			throw new Error(`argument exists and is ${type}`)
 		}
 		return a != null
 	},
-- 
2.34.1