[Solved] Which of these is a benefit of using the OnPush change detection strategy? — Ans: It improves performance by reducing unnecessary checks | Angular

Angular - Performance Optimization

Which of these is a benefit of using the OnPush change detection strategy?

AIt automatically updates the DOM without any input changes

BIt improves performance by reducing unnecessary checks

CIt disables change detection completely

DIt forces Angular to check all components every time

Step-by-Step Solution

Solution:

Step 1: Identify OnPush benefits
OnPush reduces change detection runs by checking only when inputs or events change, improving performance.
Step 2: Eliminate wrong options
Options B, C, and D describe incorrect behaviors that do not match OnPush's purpose.
Final Answer:
It improves performance by reducing unnecessary checks -> Option B
Quick Check:
OnPush benefit = better performance [OK]

Quick Trick: OnPush means fewer checks, better speed [OK]

Common Mistakes:

Master "Performance Optimization" in Angular

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