Bring back the global type declaration for the Symbol.observable to…

… fix consuming projects that do not use `skipLibCheck` (#2953)
statelyai · Jan 20, 2022 · 90fa970 · 90fa970
1 parent 7a82e42
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diff --git a/.changeset/orange-pans-study.md b/.changeset/orange-pans-study.md
@@ -0,0 +1,5 @@
+---
+'xstate': patch
+---
+
+Bring back the global type declaration for the `Symbol.observable` to fix consuming projects that do not use `skipLibCheck`.
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
@@ -77,3 +77,9 @@ export {
 };
 
 export * from './types';
+
+declare global {
+  interface SymbolConstructor {
+    readonly observable: symbol;
+  }
+}