Firmsap Consulting Interview Questions and Answers

Q1. What is array and how to modify it in js?
Ans. 
An array is a data structure that stores a collection of elements, and in JavaScript, you can modify it by adding, removing, or updating elements.
• Use array methods like push(), pop(), shift(), unshift(), splice(), and slice() to modify arrays in JavaScript.

• Example: let fruits = ['apple', 'banana', 'orange']; fruits.push('grape'); // adds 'grape' to the end of the array

• Example: let numbers = [1, 2, 3, 4, 5]; numbers.spl...read more
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Q2. What are callback functions
Ans. 
Callback functions are functions passed as arguments to other functions, to be executed later.
• Callback functions are commonly used in asynchronous programming to handle events or responses.

• They allow for more flexible and modular code by separating concerns.

• An example of a callback function is the 'setTimeout' function in JavaScript.
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Q3. How do you make an calculator in js
Ans. 
To create a calculator in JavaScript, you can use HTML for the layout and JavaScript for the functionality.
• Create a basic HTML structure with input fields for numbers and buttons for operations.

• Use JavaScript to handle user input, perform calculations, and display results.

• Implement functions for addition, subtraction, multiplication, and division.

• Update the display with the result of the calculation when the user click...read more
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What is array and how to modify it

Q1. What is your role in previous company
Ans. 
I was responsible for providing technical support to customers, troubleshooting issues, and resolving problems.
• Provided technical support to customers via phone, email, and chat

• Troubleshooted hardware and software issues

• Resolved technical problems in a timely manner

• Documented customer interactions and solutions

• Collaborated with other teams to escalate complex issues
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Q2. Did you cheated in your exams
Ans. 
No, I did not cheat in my exams. I believe in honest hard work and integrity.
• I have always believed in the value of education and the importance of earning my grades honestly.

• Cheating goes against my personal values and ethics.

• I have never been involved in any form of academic dishonesty.

• I believe that cheating only harms oneself in the long run.
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Q1. What is array and how to modify it
Ans. 
An array is a data structure that stores a collection of elements of the same type in a contiguous memory location.
• To modify an array, you can access individual elements by their index and update them with new values.

• You can also add new elements to the array by assigning values to new indexes.

• Example: let array = ['apple', 'banana', 'cherry']; array[1] = 'orange'; array.push('grape');
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Q2. What are callback functions
Ans. 
Callback functions are functions passed as arguments to other functions to be executed later.
• Callback functions are commonly used in event handling, asynchronous programming, and functional programming.

• They allow for flexibility and reusability of code by separating concerns.

• An example of a callback function is the 'setTimeout' function in JavaScript.
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Q3. How make calculator in js
Ans. 
To create a calculator in JavaScript, you can use HTML for the layout and JavaScript for the functionality.
• Create a basic HTML structure with buttons for numbers and operators

• Use JavaScript to handle user input and perform calculations

• Display the result on the screen in real-time

• Handle edge cases like division by zero or multiple operators in a row
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