Which of these Angular template expressions correctly uses the safe navigation operator to access the title property of book?

easy📝 Conceptual Q2 of 15

Angular - Templates and Data Binding

Which of these Angular template expressions correctly uses the safe navigation operator to access the title property of book?

A{{ book.title? }}

B{{ book?.title }}

C{{ book?.title? }}

D{{ book.title }}

Step-by-Step Solution

Solution:

Step 1: Identify correct safe navigation syntax
The safe navigation operator is ?. placed between the object and property.
Step 2: Check each option
{{ book?.title }} uses book?.title which is correct. Others misuse the operator or omit it.
Final Answer:
{{ book?.title }} -> Option B
Quick Check:
Safe navigation syntax = object?.property [OK]

Quick Trick: Safe navigation operator is always ?. between object and property [OK]

Common Mistakes:

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