This Angular and RxJS Online Test
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About the test

The Angular and RxJS online test evaluates a candidate’s knowledge of the Angular front-end web framework and reactive programming with RxJS.

It is an ideal test for pre-employment screening. A good Angular developer should have an in-depth understanding of Angular components and should be able to use that knowledge to create robust, scalable, and user-friendly web applications, as well as use RxJS to implement asynchronous and event-driven features.

The online test requires candidates to answer multiple choice, fill-in-the-blank, and coding questions about Angular and RxJS.

Sample public questions

Easy
2 min
mca
Public
Angular
Components

Which of the following statements about components in Angular are correct?

Easy
3 min
mca
Public
RxJS
Creation Operator
Pipeable Operator
RxJS Observable

An online streaming platform uses the following RxJS code to log the number of seconds passed in a video:

const seconds = interval(1000).pipe(
  map((x) => x + 1),
  startWith(0)
);

const logger = seconds.subscribe((x) =>
  console.log(`Seconds passed: ${x}`)
);

setTimeout(() => {
  logger.unsubscribe();
}, 5000);

What options will be true about seconds and logger after the code above is executed?

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Skills and topics tested

  • Angular
  • Structural Directive
  • Components
  • Services
  • Event Binding
  • One-Way Binding
  • Two-Way Binding
  • Angular Pipes
  • Expressions
  • Directives
  • Event Handling
  • Forms
  • Data Binding
  • Bug Fixing
  • HTTP Routing
  • RxJS
  • Creation Operator
  • Pipeable Operator
  • RxJS Observable
  • RxJS Subject

For job roles

  • Angular Developer
  • RxJS Developer

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