docs: Describe a scenario in which ngOnChanges is not called before n…

…gOnInit. (#38625) Closes #38613 PR Close #38625
angular · Sep 8, 2020 · 028ef30 · 028ef30
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diff --git a/aio/content/guide/lifecycle-hooks.md b/aio/content/guide/lifecycle-hooks.md
@@ -62,6 +62,8 @@ Angular executes hook methods in the following sequence. You can use them to per
 
       Called before `ngOnInit()` and whenever one or more data-bound input properties change.
 
+      Note that if your component has no inputs or you use it without providing any inputs, the framework will not call `ngOnChanges()`.
+
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