Fix IDB cursor prev direction description (#34463)

Josh-Cena · web-flow · commit ebaebbbbfe52 · 2024-06-28T12:15:05.000+09:00
diff --git a/files/en-us/web/api/idbcursor/direction/index.md b/files/en-us/web/api/idbcursor/direction/index.md
@@ -23,12 +23,12 @@ Possible values are:
   - : This direction causes the cursor to be opened at the start of the source.
 - `nextunique`
   - : This direction causes the cursor to be opened at the start of the source.
-    For every key with duplicate values, only the first record is yielded.
+    For every key with duplicate values, only the first-visited record (closest to the start) is yielded.
 - `prev`
   - : This direction causes the cursor to be opened at the end of the source.
 - `prevunique`
   - : This direction causes the cursor to be opened at the end of the source.
-    For every key with duplicate values, only the first record is yielded.
+    For every key with duplicate values, only the first-visited record (closest to the end) is yielded.
 
 ## Examples
 
diff --git a/files/en-us/web/api/idbobjectstore/opencursor/index.md b/files/en-us/web/api/idbobjectstore/opencursor/index.md
@@ -39,10 +39,10 @@ openCursor(query, direction)
       - : The cursor is opened at the start of the store; then, the cursor returns all records, that are not duplicates,
         in the increasing order of keys.
     - `prev`
-      - : The cursor is opened at the start of the store; then, the cursor returns all records, even duplicates,
+      - : The cursor is opened at the end of the store; then, the cursor returns all records, even duplicates,
         in the decreasing order of keys.
     - `prevunique`
-      - : The cursor is opened at the start of the store; then, the cursor returns all records, that are not duplicates,
+      - : The cursor is opened at the end of the store; then, the cursor returns all records, that are not duplicates,
         in the decreasing order of keys.
 
 ### Return value
diff --git a/files/en-us/web/api/idbobjectstore/openkeycursor/index.md b/files/en-us/web/api/idbobjectstore/openkeycursor/index.md
@@ -32,9 +32,19 @@ openKeyCursor(query, direction)
     range containing only that key. If nothing is passed, this will default to a key range
     that selects all the records in this object store.
 - `direction` {{optional_inline}}
-  - : An [`IDBCursorDirection`](https://w3c.github.io/IndexedDB/#enumdef-idbcursordirection) telling the cursor what direction to travel.
-    Valid values are `"next"`, `"nextunique"`, `"prev"`,
-    and `"prevunique"`. The default is `"next"`.
+  - : A string telling the cursor which direction to travel. The default is `next`. Valid values are:
+    - `next`
+      - : The cursor is opened at the start of the store; then, the cursor returns all records, even duplicates,
+        in the increasing order of keys.
+    - `nextunique`
+      - : The cursor is opened at the start of the store; then, the cursor returns all records, that are not duplicates,
+        in the increasing order of keys.
+    - `prev`
+      - : The cursor is opened at the end of the store; then, the cursor returns all records, even duplicates,
+        in the decreasing order of keys.
+    - `prevunique`
+      - : The cursor is opened at the end of the store; then, the cursor returns all records, that are not duplicates,
+        in the decreasing order of keys.
 
 ### Return value
 
