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What happens if you use the same selector for two different Angular components in the same module?

medium📝 component behavior Q5 of 15
Angular - Components
What happens if you use the same selector for two different Angular components in the same module?
AOnly the first declared component renders, the second is ignored
BBoth components render one after another automatically
CAngular throws a compilation error due to duplicate selectors
DAngular merges both components into one
Step-by-Step Solution
Solution:

  1. Step 1: Understand selector uniqueness

    Selectors must be unique to identify components in templates.

  2. Step 2: Check Angular behavior on duplicates

    Angular detects duplicate selectors and throws a compilation error.

  3. Final Answer:

    Angular throws a compilation error due to duplicate selectors -> Option C

  4. Quick Check:

    Duplicate selectors cause compile errors [OK]
Quick Trick: Keep selectors unique to avoid compile errors [OK]
Common Mistakes:
  • Assuming Angular merges components
  • Thinking both render automatically
  • Believing duplicates are ignored silently

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