Datagaps Angular Developer Interview Questions and Answers

Q1. Tell me about yourself?
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Q2. Which technical skill you have?
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Q3. How many year of Work experience?
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Q1. How to call api in angular write the code for this
Ans. 
To call an API in Angular, use HttpClient module to make HTTP requests.
• Import HttpClientModule in app.module.ts

• Inject HttpClient in the component/service where API call needs to be made

• Use HttpClient methods like get(), post(), put(), delete() to make API calls

• Subscribe to the Observable returned by HttpClient methods to handle the response
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Q2. Difference between reactive form and template driven form
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Reactive forms are more flexible and allow for complex form validation and handling, while template driven forms are simpler and rely on directives in the template.
• Reactive forms are defined programmatically in the component class using form controls, form groups, and form arrays.

• Template driven forms are defined in the HTML template using ngModel directive and template variables.

• Reactive forms offer more control over ...read more
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Q3. Write the code for reactive form
Ans. 
Reactive forms in Angular allow for creating and managing forms in a reactive way.
• Import ReactiveFormsModule in app.module.ts

• Create form controls using FormBuilder in component

• Bind form controls to HTML elements using formGroup and formControlName directives

• Handle form submission and validation using formGroup and formControl directives
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Q4. How to id or data pass by routing and go to the another page?
Ans. 
You can pass data through routing by using route parameters or query parameters.
• Use route parameters to pass data directly in the URL, like '/page/:id'

• Access the passed data in the target component using ActivatedRoute

• Use query parameters for passing data in the URL, like '/page?id=123'

• Retrieve query parameters in the target component using ActivatedRoute
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Q5. New features in angular 17?
Ans. 
Angular 17 introduces new features such as improved performance, enhanced tooling, and updated APIs.
• Improved performance with faster rendering and reduced bundle sizes

• Enhanced tooling with better support for debugging and testing

• Updated APIs for more efficient development and easier integration with other libraries
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Q1. Salary discussion and relocate
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There are Question based on data strcuture ,they cover all the topic in ds

In coding code they gave internet access to solve the problem after 30 they told us to make some changes in it and we should ready to explain the entire code

Q1. There wer four questions 1) wildcard pattern matching(leetcode) 2) cows and buffaloes(leetcode) 3) unix based cd directory 4) backtracking question
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Q2. It was a resume based round for 45 min
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Q1. It was a resume based round for 1 hr
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Paper based exam based on C and embedded c

Q1. Relevant questions asked
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Totally there were 15 questions

Logical reasoning, SQL, Python, Algorithmic thinking

Second round was a more difficult version of the SQL and Python testing

Q1. I don’t remember
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