Angular - Change Detection
Why does Angular's Default change detection strategy run slower in large apps compared to OnPush?
Why does Angular's Default change detection strategy run slower in large apps compared to OnPush?
hard🧠 Conceptual Q10 of 15
Step-by-Step Solution
Solution:
Step 1: Compare Default and OnPush strategies
Default runs change detection on all components every cycle; OnPush limits checks.Step 2: Understand performance impact in large apps
Checking all components frequently causes slower performance in Default strategy.Final Answer:
Because Default checks every component every cycle, causing many unnecessary checks -> Option CQuick Check:
Default = many checks; OnPush = fewer checks [OK]
Quick Trick: Default checks all components each cycle, slowing large apps [OK]
Common Mistakes:
MISTAKES- Thinking OnPush disables detection
- Believing Default checks only changed inputs
- Assuming OnPush needs manual calls
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