ExamRoom.AI Angular Frontend Developer Interview Questions and Answers

Normal aptitude questions

Q1. Explain ngrx state management with one example
Ans. 
ngrx is a state management library for Angular applications
• ngrx uses a centralized store to manage the state of the application

• Actions are dispatched to update the state in a predictable way

• Selectors are used to retrieve specific pieces of state from the store

• Effects are used to manage side effects such as API calls

• Example: Dispatching an action to update the user's profile information in the store
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Q2. Coding questions on filters
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Q1. Count the repeating number in array program
Ans. 
Count the repeating numbers in an array of strings
• Iterate through the array and use a hashmap to store the count of each number

• Return the numbers that have a count greater than 1
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Q2. Let str= 'welcome' output should be 'xfmfpnf' program
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Q3. Basic questions on angular
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Q1. Salary discussion
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Q1. Angular lifecycle
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