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angular / Templates and Interpolation
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Direction: Choose the correct option

Q1.

What is interpolation in Angular?
A. A way to embed expressions in templates using double curly braces
B. A CSS technique
C. A routing feature
D. A method for data binding
Direction: Choose the correct option

Q2.

What will be displayed for `{{ 1 + 2 }}` in a template?
A. Error
B. undefined
C. 3
D. 1 + 2
Direction: Choose the correct option

Q3.

Can you call a component method using interpolation?
A. Only in event binding
B. No, methods cannot be called
C. Yes, e.g., `{{ getTitle() }}`
D. Only with special syntax
Direction: Choose the correct option

Q4.

What is the template reference variable?
A. A variable that holds a reference to a DOM element or directive
B. A global variable
C. A TypeScript variable
D. A variable declared in the component
Direction: Choose the correct option

Q5.

How do you comment in an Angular template?
A. // comment
B. <!-- comment -->
C. /* comment */
D. {{!-- comment --}}
Direction: Choose the correct option

Q6.

What is the safe navigation operator (`?.`) used for?
A. To navigate between pages
B. To navigate arrays
C. To protect against null/undefined property access
D. To navigate objects
Direction: Choose the correct option

Q7.

Can you use JavaScript expressions in interpolation?
A. Yes, any JavaScript
B. Yes, limited expressions
C. No, only properties
D. Only method calls
Direction: Choose the correct option

Q8.

What does `{{ property }}` do if property is undefined?
A. Throws an error
B. Displays 'null'
C. Displays 'undefined'
D. Nothing is displayed (empty string)
Direction: Choose the correct option

Q9.

How do you concatenate strings in interpolation?
A. Both A and C
B. `{{ 'Hello ' + name }}`
C. `{{ 'Hello' }} {{ name }}`
D. `{{ 'Hello', name }}`
Direction: Choose the correct option

Q10.

What is the role of pipes in interpolation?
A. To route
B. To create pipes
C. To transform the displayed value
D. To handle events