From 84763be860e73521dace011915f41045e1f11a28 Mon Sep 17 00:00:00 2001
From: chris <hizyyv@gmail.com>
Date: Mon, 6 May 2024 15:44:42 +0800
Subject: [PATCH] feat(preset-icons): throw error when `prefix` empty

---
 packages/preset-icons/src/core.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/preset-icons/src/core.ts b/packages/preset-icons/src/core.ts
index 360fa3898d..d4947ff077 100644
--- a/packages/preset-icons/src/core.ts
+++ b/packages/preset-icons/src/core.ts
@@ -31,6 +31,10 @@ export function createPresetIcons(lookupIconLoader: (options: IconsOptions) => P
       unit,
     } = options
 
+    // eslint-disable-next-line unicorn/prefer-includes
+    if (prefix === '' || (Array.isArray(prefix) && prefix.some(p => p === '')))
+      throw new Error('prefix cannot be empty')
+
     const flags = getEnvFlags()
 
     const loaderOptions: IconifyLoaderOptions = {