docs: add note about replace preprocessor to replace all occurences (#…

…478)
sveltejs · Feb 8, 2022 · 5db27a3 · 5db27a3
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diff --git a/README.md b/README.md
@@ -152,7 +152,7 @@ In example, to replace inject the value of `process.env.NODE_ENV`:
 
 ```js
 autoPreprocess({
-  replace: [['process.env.NODE_ENV', JSON.stringify(process.env.NODE_ENV)]],
+  replace: [[/process\.env\.NODE_ENV/g, JSON.stringify(process.env.NODE_ENV)]],
 });
 ```
 

diff --git a/docs/preprocessing.md b/docs/preprocessing.md
@@ -484,3 +484,5 @@ And the result, with a `NODE_ENV = 'production'` would be:
   <h1>Production environment!</h1>
 {/if}
 ```
+
+> Note: a string can be used instead of a `RegExp`, but only a single occurence of it will change, as per the default behavior of `String.prototype.replace`.
-Original file line number
+Diff line change
@@ Expand Up @@
     ```js
     autoPreprocess({
-      replace: [['process.env.NODE_ENV', JSON.stringify(process.env.NODE_ENV)]],
+      replace: [[/process\.env\.NODE_ENV/g, JSON.stringify(process.env.NODE_ENV)]],
     });
     ```
@@ Expand Down @@