docs: Use `state` instead of `this` in example (#1295)

Using `state` is the preferred way to access data in a getter. So it's better to use it correctly in examples.

diff --git a/packages/docs/core-concepts/getters.md b/packages/docs/core-concepts/getters.md
index c940f5f63a83c84ed08ece3d6086415a800aa39c..2c0e601623f04615ed22393b1c9c4d681f9e0696 100644 (file)
--- a/packages/docs/core-concepts/getters.md
+++ b/packages/docs/core-concepts/getters.md
@@ -184,8 +184,8 @@ const useCounterStore = defineStore('counterStore', {
     counter: 0
   }),
   getters: {
-    doubleCounter() {
-      return this.counter * 2
+    doubleCounter(state) {
+      return state.counter * 2
     }
   }
 })