From 96109da988b15bb71bb88ec6107f131538b2e79b Mon Sep 17 00:00:00 2001
From: Jim Burbridge <jhechtf@gmail.com>
Date: Mon, 1 Sep 2025 19:56:27 -0700
Subject: [PATCH] fix(arktype-utils): Adjusts bad values to stop mangling names

---
 .changeset/angry-pots-cross.md         |  5 +++++
 packages/arktype-utils/CHANGELOG.md    | 14 +++++++-------
 packages/arktype-utils/package.json    |  2 +-
 packages/arktype-utils/src/formData.ts |  3 ++-
 4 files changed, 15 insertions(+), 9 deletions(-)
 create mode 100644 .changeset/angry-pots-cross.md

diff --git a/.changeset/angry-pots-cross.md b/.changeset/angry-pots-cross.md
new file mode 100644
index 0000000..2a3a21e
--- /dev/null
+++ b/.changeset/angry-pots-cross.md
@@ -0,0 +1,5 @@
+---
+"@jhecht/arktype-utils": patch
+---
+
+Fixes faulty logic in parse key causing names to only be the first character.
diff --git a/packages/arktype-utils/CHANGELOG.md b/packages/arktype-utils/CHANGELOG.md
index ba8f5bc..b09614d 100644
--- a/packages/arktype-utils/CHANGELOG.md
+++ b/packages/arktype-utils/CHANGELOG.md
@@ -13,17 +13,17 @@
   ```ts
   // Test nested objects with dot notation
   const fd = new FormData();
-  fd.append("payments.id1.location", "England");
-  fd.append("payments.id1.age", "37");
-  fd.append("payments.id2.location", "New York");
+  fd.append('payments.id1.location', 'England');
+  fd.append('payments.id1.age', '37');
+  fd.append('payments.id2.location', 'New York');
   const obj = formDataToObject(fd);
 
   // Test nested arrays with bracket notation
   const fd2 = new FormData();
-  fd2.append("locations[].name", "England");
-  fd2.append("locations[].members[]", "John");
-  fd2.append("locations[].members[]", "Joe");
-  fd2.append("locations[].name", "France");
+  fd2.append('locations[].name', 'England');
+  fd2.append('locations[].members[]', 'John');
+  fd2.append('locations[].members[]', 'Joe');
+  fd2.append('locations[].name', 'France');
   const obj2 = formDataToObject(fd2);
   ```
 
diff --git a/packages/arktype-utils/package.json b/packages/arktype-utils/package.json
index 4206387..acbb4fd 100644
--- a/packages/arktype-utils/package.json
+++ b/packages/arktype-utils/package.json
@@ -11,7 +11,7 @@
   },
   "scripts": {
     "test": "vitest --coverage",
-    "test:ci": "vitest run --coverage --changed",
+    "test:ci": "vitest run --coverage",
     "build": "tsup src/index.ts --format cjs,esm --dts",
     "lint": "eslint src/**/*.ts",
     "prepublishOnly": "pnpm run build"
diff --git a/packages/arktype-utils/src/formData.ts b/packages/arktype-utils/src/formData.ts
index c7992e9..948b8a1 100644
--- a/packages/arktype-utils/src/formData.ts
+++ b/packages/arktype-utils/src/formData.ts
@@ -57,7 +57,8 @@ function parseKeyPath(key: string): (string | number)[] {
   let buffer = '';
   let inBracket = false;
   for (let i = 0; i < key.length; i++) {
-    const [char] = key;
+    // eslint-disable-next-line @jhecht/prefer-destructuring
+    const char = key[i];
     if (char === '[') {
       if (buffer) {
         path.push(buffer);