Technical Support Intern Interview Questions and Answers

Yes, I know Angular.

• I have experience in building web applications using Angular framework.

• I am familiar with Angular CLI, components, services, and routing.

• I have worked on projects that involve integrating Angular with REST APIs.

• I am comfortable with TypeScript and reactive programming using RxJS.

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');

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

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.