Added docs for .apply()in basic usage of systemState (#7138)

# Objective Fixes #5940 ## Solution Added the suggested comment. Co-authored-by: zeroacez <[email protected]>
bevyengine · Jan 10, 2023 · aaaf357 · aaaf357
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commit aaaf357
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/crates/bevy_ecs/src/system/function_system.rs b/crates/bevy_ecs/src/system/function_system.rs
@@ -106,6 +106,9 @@ impl SystemMeta {
 /// // Use system_state.get_mut(&mut world) and unpack your system parameters into variables!
 /// // system_state.get(&world) provides read-only versions of your system parameters instead.
 /// let (event_writer, maybe_resource, query) = system_state.get_mut(&mut world);
+///
+/// // If you are using [`Commands`], you can choose when you want to apply them to the world.
+/// // You need to manually call `.apply(world)` on the [`SystemState`] to apply them.
 /// ```
 /// Caching:
 /// ```rust