Acheron Software Consultancy Interview Questions and Answers

Two coding questions

Q1. What is the use of viewChild({static: false/true})
Ans. 
ViewChild is used to get a reference to a child component or element in the parent component's template.
• ViewChild is used in Angular to access a child component or element from the parent component's template.

• The static flag determines whether the reference is resolved at compile time or runtime.

• If static is set to true, the reference is resolved at compile time and can be used in ngOnInit.

• If static is set to false, th...read more
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Q2. Sending multiple request to backend at a time, how can you achieve
Ans. 
To send multiple requests to the backend at a time, you can use asynchronous programming or multithreading.
• Use asynchronous programming techniques like callbacks, promises, or async/await to send multiple requests concurrently.

• Implement multithreading to achieve parallel processing of requests.

• Consider using libraries or frameworks that provide built-in support for concurrent requests, such as Node.js with Express or J...read more
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Great coding test to make others understand that you are capable.

Q1. First Duplicate number in an array.
Ans. 
Find the first duplicate number in an array of strings.
• Iterate through the array and store each element in a HashSet.

• If an element is already in the HashSet, return it as the first duplicate.

• If no duplicates are found, return null.
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Q2. Return boolean when the given string contains properly closed braces
Ans. 
Check if a given string contains properly closed braces and return boolean
• Iterate through the string and keep track of opening and closing braces

• Use a stack data structure to keep track of the opening braces

• If a closing brace is encountered, pop from the stack and check if it matches the corresponding opening brace

• Return true if the stack is empty at the end, false otherwise
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Q1. Good friendly questions, no negations of salary and nothing
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All type of questions and logics

Q1. Data structure and algorithms
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Q2. Coading stars, strings
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Q1. Behavior questions and weakness, role model
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