Angular - Change Detection
What happens if a component with OnPush change detection updates an internal variable but its input reference stays the same?
What happens if a component with OnPush change detection updates an internal variable but its input reference stays the same?
medium📝 component behavior Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Recall OnPush detection rules
OnPush only runs change detection when input references change or events inside the component occur.Step 2: Understand internal variable effect
Changing internal variables without input change does not trigger detection automatically.Final Answer:
Angular will NOT run change detection for that component automatically. -> Option BQuick Check:
OnPush ignores internal variable changes [OK]
Quick Trick: Internal changes don't trigger OnPush detection [OK]
Common Mistakes:
MISTAKES- Assuming internal changes always update view
- Expecting errors on internal changes
- Believing OnPush ignores input changes
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