From 25a839bf888b6c0452529ec7114d31238b521605 Mon Sep 17 00:00:00 2001
From: Joe Knapper <jaknapper@hotmail.com>
Date: Mon, 23 Feb 2026 17:48:26 +0000
Subject: [PATCH] Stringify 0 as axios treats it as ""

Also add a check that we don't try to log(0)
---
 webapp/src/components/labThingsComponents/inputFromSchema.vue | 3 ++-
 webapp/src/mixins/labThingsMixins.js                          | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/webapp/src/components/labThingsComponents/inputFromSchema.vue b/webapp/src/components/labThingsComponents/inputFromSchema.vue
index 5b251e2d..6caac19e 100644
--- a/webapp/src/components/labThingsComponents/inputFromSchema.vue
+++ b/webapp/src/components/labThingsComponents/inputFromSchema.vue
@@ -346,7 +346,8 @@ export default {
       }
 
       // Rounding to about 5 sig figs to stop weird javascript rounding.
-      const magnitude = Math.floor(Math.log10(Math.abs(newValue)));
+      const absVal = Math.abs(newValue);
+      const magnitude = absVal > 0 ? Math.floor(Math.log10(absVal)) : 0;
       const factor = 10 ** -(Math.floor(magnitude) - 4);
       this.internalValue = Math.round(newValue * factor) / factor;
     },
diff --git a/webapp/src/mixins/labThingsMixins.js b/webapp/src/mixins/labThingsMixins.js
index 2b935492..4fcc4d1a 100644
--- a/webapp/src/mixins/labThingsMixins.js
+++ b/webapp/src/mixins/labThingsMixins.js
@@ -56,10 +56,10 @@ export default {
         "writeproperty",
         false,
       );
-      // `false` fails because axios somehow eats it!
+      // `false` and 0 fail because axios turns it to ""
       // Other values should not be stringified or pydantic
       // can't parse them.
-      if (value === false || value === true) {
+      if (value === false || value === true || value === 0) {
         value = JSON.stringify(value);
       }
       await axios.put(url, value);