[Solved] Given this Angular pipe usage:items = [1, 2, 3];// Template: {{ items | customPipe }}If customPipe is pure, when will it run again after initial render? | Angular

Angular - Pipes

Given this Angular pipe usage:

items = [1, 2, 3];
// Template: {{ items | customPipe }}

If customPipe is pure, when will it run again after initial render?

ANever after the initial render.

BOn every change detection cycle.

CWhenever any property inside items changes.

DOnly if the items array reference changes.

Step-by-Step Solution

Solution:

Step 1: Understand pure pipe trigger
Pure pipes run only when the input reference changes, not on internal mutations.
Step 2: Analyze options
Only if the items array reference changes. correctly states it runs only if the array reference changes; others are incorrect.
Final Answer:
Only if the items array reference changes. -> Option D
Quick Check:
Pure pipe runs on input reference change [OK]

Quick Trick: Pure pipes run only on input reference changes [OK]

Common Mistakes:

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