245 only set one hash string (#246)

* feat: only one hash string * docs: update readme
duguyihou · Jun 22, 2024 · 4065da3 · 4065da3
1 parent 52a4788
commit 4065da3
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diff --git a/README.md b/README.md
@@ -57,10 +57,10 @@ type Placeholder = {
 };
 ```
 
-show placeholder while loading.
+show placeholder while loading, either `thumbhash` or `blurhash`
 
-- [blurhash](https://blurha.sh/)
 - [thumbhash](https://evanw.github.io/thumbhash/)
+- [blurhash](https://blurha.sh/)
 
 ### `cachePolicy?: enum`
 

diff --git a/src/TurboImage.tsx b/src/TurboImage.tsx
@@ -44,6 +44,10 @@ const TurboImage = (props: TurboImageProps) => {
     ...restProps
   } = props;
 
+  if (placeholder && Object.keys(placeholder).length > 1) {
+    throw new Error('Choose one hash string, either thumbhash or blurhash');
+  }
+
   const processedIndicator =
     indicator && Object.keys(indicator).length !== 0
       ? {