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Interview Questions and Answers for 'T' - 2618 question(s) found - Order By Rating

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 Q1. What would you use the span element for ?HTML
 This question is still unanswered. Can you please provide an answer.


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 Q2. What is Array.Map function ? What will be output of following ?

const myArray = [1, 4, 9, 16];
const result = myArray.map(x => x * 2);
Javascript
Ans. It will create an array with each value as x*2

[2, 8, 18, 32]

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   Like         Discuss         Correct / Improve          Asked in 2 Companies


 Q3. What is systemd in Unix ?Unix
 This question was recently asked at 'Broadcom, Symantec'.This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve          Asked in 2 Companies


 Q4. Will this code give any error ?

let result: string;
result = false || 'true';
Typescript
Ans. No

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 Q5. Will this code give any error ?

let result: boolean | string;
result = false || 'true';
Typescript
Ans. No

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 Q6. Will this code give any error ?

let result: boolean;
result = false || true;
Typescript
Ans. No

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 Q7. Will the following code give any error

let result: boolean;
result = false | true;
Typescript
Ans. Yes, | is a bitwise operator and not boolean or. Use || instead

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 Q8. Will the following code give any error

let result: string | number;
result = 'true';
Typescript
Ans. No

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 Q9. Will the following code give any error

let result: string | number;
result = 'true';
Typescript
Ans. No

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 Q10. Will the following code give any error

let result: string | number;
result = true;
Typescript
Ans. Yes, result can either be string or a number but not boolean.

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 Q11. What does the following declaration mean

let result: string | number;
Typescript
Ans. It means we can assign either a string or a number to result.

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 Q12. How can we specify that a particular variable may have either of the two data types in Typescript ? Typescript
Ans. Yes

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 Q13. How can we specify that a particular variable may have either of the two data types in Typescript ? Typescript
Ans. let result: string | boolean;

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 Q14. Can we specify that a particular variable may have either of the two data types in Typescript ? Typescript
Ans. let result: string | boolean;

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 Q15. Is it safe to use session storage ?Javascript
Ans. Session storage can be accessed from XSS (Cross site Scripting) attacks but cookies (if set with "HttpOnly" and "Secure" flags) are more safer against these attacks.

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   Like         Discuss         Correct / Improve     session storage  security


 Q16. How can you trim all strings in an array ?
Ans. array.map(s => s.trim())

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   Like         Discuss         Correct / Improve     java   angular   typescript   javascript


 Q17. What is GIT Stash ?Git
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 Q18. What is conflict in GIT ?Git
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 Q19. What is staging in GIT ?Git
Ans. Before completing the commits, it can be formatted and reviewed in an intermediate area known as staging.

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 Q20. Which language is Git written in ? and What are it's benefits ?Git
Ans. GIT is fast because it's written in C.

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 Q21. What does this warning message for the unit test means

WARN: 'Spec has no expectations.'
Angular
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   Like         Discuss         Correct / Improve     Junit   Jasmine   Karma


 Q22. How can you delete a commit from a pull request ?Git
Ans. By rolling back that commit in the branch

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 Q23. Do you ever merge changes from one feature branch to another ? Why ?SCM
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   Like         Discuss         Correct / Improve     SCM  Source Code Management  Configuration Control  Git  Svn


 Q24. How do you merge changes from master to your feature branch ?Git
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 Q25. How to you resolve merge conflicts in GIT ?Git
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 Q26. Can we do a thread specific heap allocation ?Memory Management
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   Like         Discuss         Correct / Improve     memory management  heap memory   heap allocation      expert


 Q27. What resources are shared between threads ?Threads
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 Q28. Do threads have a distinct heap ?Memory Management
 This question is still unanswered. Can you please provide an answer.


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   Like         Discuss         Correct / Improve     memory management  heap memory      expert


 Q29. What is the difference between Merge and "Stash and Merge" ?Git
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 Q30. What is the difference between Subject and Observable ?Angular
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   Like         Discuss         Correct / Improve     subject vs observable


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