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What will happen if you forget to add a component to the declarations array but try to use it in a template within the same module?

medium📝 Predict Output Q5 of 15
Angular - Modules
What will happen if you forget to add a component to the declarations array but try to use it in a template within the same module?
AAngular throws a template parse error at compile time
BThe component renders but without styles
CAngular automatically adds it to declarations
DThe component works only if added to providers
Step-by-Step Solution
Solution:
  1. Step 1: Recall Angular's compilation checks

    Angular requires components to be declared in the module to recognize them in templates.
  2. Step 2: Identify error when declaration is missing

    If a component is used but not declared, Angular throws a template parse error during compilation.
  3. Final Answer:

    Angular throws a template parse error at compile time -> Option A
  4. Quick Check:

    Missing declarations cause compile errors [OK]
Quick Trick: Always declare components before using in templates [OK]
Common Mistakes:
  • Assuming Angular auto-declares components
  • Confusing providers with declarations
  • Expecting runtime errors instead of compile errors

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