Mphrx Interview Questions and Answers

Use JavaScript to reverse a given string.

• Create a function that takes a string as input

• Use the split(), reverse(), and join() methods to reverse the string

• Return the reversed string

FizzBuzz is a common coding challenge where numbers divisible by 3 are replaced with 'Fizz', numbers divisible by 5 are replaced with 'Buzz', and numbers divisible by both are replaced with 'FizzBuzz'.

• Create a loop to iterate through numbers 1 to 100

• Use if statements to check if the number is divisible by 3, 5, or both

• Replace the number with 'Fizz', 'Buzz', or 'FizzBuzz' accordingly

Dependency Injection is a design pattern in which a class receives its dependencies from an external source rather than creating them itself.

• In Angular, Dependency Injection is used to provide instances of services to components.

• It helps in creating loosely coupled components, making the code more maintainable and testable.

• Example: In Angular, you can inject services like HttpClient, Router, etc. into components using

Directives in Angular are markers on a DOM element that tell Angular to attach a specified behavior to that DOM element or transform the DOM element and its children.

• Directives are used to extend HTML with new attributes or elements.

• There are three types of directives in Angular: Component, Structural, and Attribute directives.

• Examples of built-in directives in Angular include ngIf, ngFor, and ngStyle.