From 56be7eee1589b13f5d864c03f4c1a8721fad38b9 Mon Sep 17 00:00:00 2001
From: "Felix W. Dekker" <felix@fwdekker.com>
Date: Thu, 31 Oct 2019 16:27:02 +0100
Subject: [PATCH] Do not update fields if current input is empty

---
 index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.html b/index.html
index 1db5d89..c2c219b 100644
--- a/index.html
+++ b/index.html
@@ -95,7 +95,7 @@
                 this.textarea.id = `${this.name}Input`;
                 this.textarea.className = "numberInput";
                 this.textarea.oninput = () => {
-                    if (this.textarea.value === undefined || this.textarea.value === null)
+                    if (this.textarea.value === undefined || this.textarea.value === null || this.textarea.value === "")
                         return;
 
                     this.textarea.value = this.numeralSystem.filterBaseString(this.textarea.value);