[Solved] Given the following Angular animation trigger:trigger('openClose', [ state('open', style({ height: '200px', opacity: 1 })), state('closed', style({ height: '100px', opacity: 0.... | Angular

Angular - Animations

Given the following Angular animation trigger:

trigger('openClose', [
  state('open', style({ height: '200px', opacity: 1 })),
  state('closed', style({ height: '100px', opacity: 0.5 })),
  transition('open => closed', animate('1s')),
  transition('closed => open', animate('0.5s'))
])

What will be the animation duration when transitioning from closed to open?

ANo animation

B1 second

C0.5 seconds

D2 seconds

Step-by-Step Solution

Solution:

Step 1: Identify the transition direction
The transition from 'closed' to 'open' is defined as transition('closed => open', animate('0.5s')).
Step 2: Read the animation duration
The animate function specifies 0.5 seconds duration for this transition.
Final Answer:
0.5 seconds -> Option C
Quick Check:
closed to open = 0.5s animation [OK]

Quick Trick: Check transition direction and matching animate duration [OK]

Common Mistakes:

Mixing up open=>closed and closed=>open durations
Assuming default duration if not specified
Ignoring transition direction syntax

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More Angular Quizzes

Given the following Angular animation trigger:

Step 1: Identify the transition direction

Step 2: Read the animation duration

Final Answer:

Quick Check:

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