25 interview questions for developers (2024)

Easy

16 votes2556 runs2 comments

Create a form with two mandatory fields in Angular

Web developer

angular

form

validation

Anonymous authorat Jan 4, 2022

Medium

11 votes2517 runs1 comment

Which provider is recommended for DOM manipulation in Angular?

Web developer

angular

dom

Anonymous authorat Jan 4, 2022

Hard

11 votes2485 runs1 comment

Which of these methods, allowing to create Providers, does not exist in Angular?

Web developer

angular

providers

Anonymous authorat Mar 28, 2023

Medium

5 votes2245 runs0 comment

In an Angular directive, which decorator should we use to listen for an event of the element that this same directive is placed on?

Web developer

directives

events

Anonymous authorat Jan 4, 2022

Easy

5 votes2202 runs0 comment

Why is the following snippet not validated? ```jsx <h1>Products Lists</h1> <ul> <li ngFor="let p of products" ngIf="p.stock > 0"> {{ p.name }} </li> </ul> ``` Answer: We cannot have ngFor and ngIf on the same element

Web developer

angular

ngFor

ngIf

Anonymous authorat Jan 4, 2022

Easy

4 votes2388 runs

2 comments

Write a pipe to format a date according to a certain pattern.

Web developer

angular

pipe

Anonymous authorat Jan 4, 2022

Medium

4 votes2201 runs0 comment

Which token should we use to execute JavaScript code when starting the application

Web developer

angular

app

Anonymous authorat Jan 4, 2022

Easy

3 votes2254 runs0 comment

Unsubscribe from an Observable in Angular

Web developer

angular

observables

subscriptions

Anonymous authorat Jan 4, 2022

Medium

2 votes812 runs0 comment

How many service instances will be created if you provide a service in the "providers" section of two @Component decorator components?

Web developer

angular

services

Nicolasat Apr 13, 2022

Easy

1 vote2457 runs

1 comment

How to make a child component communicate with its parent component in Angular?

Web developer

angular

child component

parent component

Anonymous authorat Jan 4, 2022

Easy

1 vote2218 runs1 comment

How to retrieve an event in Angular

Web developer

events

angular

Anonymous authorat Jan 2, 2024

Hard

1 vote2208 runs0 comment

How to use the ngModel directive in Angular?

Web developer

angular

ngModel

Anonymous authorat Jan 4, 2022

Medium

1 vote693 runs0 comment

Define an interface that acts as a bridge between Angular's Forms API and a native element in the DOM.

Web developer

angular

forms

Marc Gavanierat Jan 4, 2022

Easy

0 vote2294 runs1 comment

Get a path parameter from the current url in Angular

Web developer

angular

route

Anonymous authorat Jan 4, 2022

Easy

0 vote2203 runs0 comment

Which of these syntaxes cannot be used in Angular?

Web developer

angular

attribute

Anonymous authorat Jan 4, 2022

Hard

0 vote2199 runs0 comment

What is the main purpose of the* providedIn: 'root'* property which is automatically put on each generated service?

Web developer

angular

tree shaking

Anonymous authorat Jan 4, 2022

Medium

0 vote2197 runs

2 comments

Which of these component lifecycle methods does not exist? (ngAfterDestroy)

Web developer

lifecycle

methods

Anonymous authorat Jan 4, 2022

Easy

0 vote2180 runs0 comment

Create a new component in an Angular module and make it available in the whole application.

Web developer

angular

module

component

Anonymous authorat Jan 4, 2022

Easy

0 vote2118 runs0 comment

What type of Guard does not exist in Angular?

Web developer

guards

Anonymous authorat Jan 4, 2022

Medium

0 vote1093 runs0 comment

Which of these methods, allowing to create Providers, does not exist in Angular?

Web developer

angular

providers

kooliat Oct 18, 2022

25 interview questionsfor developers (2024)

Test your developer skills before an interview with 25 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

Create a form with two mandatory fields in Angular

Which provider is recommended for DOM manipulation in Angular?

Which of these methods, allowing to create Providers, does not exist in Angular?

In an Angular directive, which decorator should we use to listen for an event of the element that this same directive is placed on?

Why is the following snippet not validated? ```jsx <h1>Products Lists</h1> <ul> <li ngFor="let p of products" ngIf="p.stock > 0"> {{ p.name }} </li> </ul> ``` Answer: We cannot have ngFor and ngIf on the same element

Write a pipe to format a date according to a certain pattern.

Which token should we use to execute JavaScript code when starting the application

Unsubscribe from an Observable in Angular

How many service instances will be created if you provide a service in the "providers" section of two @Component decorator components?

How to make a child component communicate with its parent component in Angular?

How to retrieve an event in Angular

How to use the ngModel directive in Angular?

Define an interface that acts as a bridge between Angular's Forms API and a native element in the DOM.

Get a path parameter from the current url in Angular

Which of these syntaxes cannot be used in Angular?

What is the main purpose of the* providedIn: 'root'* property which is automatically put on each generated service?

Which of these component lifecycle methods does not exist? (ngAfterDestroy)

Create a new component in an Angular module and make it available in the whole application.

What type of Guard does not exist in Angular?

Which of these methods, allowing to create Providers, does not exist in Angular?

25 interview questionsfor developers (2024)

Test your developer skills before an interview with 25 corrected questions on 80+ topics. Beginner, Intermediate or Expert level.

Create a form with two mandatory fields in Angular

Which provider is recommended for DOM manipulation in Angular?

Which of these methods, allowing to create Providers, does not exist in Angular?

In an Angular directive, which decorator should we use to listen for an event of the element that this same directive is placed on?

Why is the following snippet not validated? ```jsx <h1>Products Lists</h1> <ul> <li *ngFor="let p of products" *ngIf="p.stock > 0"> {{ p.name }} </li> </ul> ``` Answer: We cannot have ngFor and ngIf on the same element

Write a pipe to format a date according to a certain pattern.

Which token should we use to execute JavaScript code when starting the application

Unsubscribe from an Observable in Angular

How many service instances will be created if you provide a service in the "providers" section of two @Component decorator components?

How to make a child component communicate with its parent component in Angular?

How to retrieve an event in Angular

How to use the ngModel directive in Angular?

Define an interface that acts as a bridge between Angular's Forms API and a native element in the DOM.

Get a path parameter from the current url in Angular

Which of these syntaxes cannot be used in Angular?

What is the main purpose of the* providedIn: 'root'* property which is automatically put on each generated service?

Which of these component lifecycle methods does not exist? (ngAfterDestroy)

Create a new component in an Angular module and make it available in the whole application.

What type of Guard does not exist in Angular?

Which of these methods, allowing to create Providers, does not exist in Angular?

Why is the following snippet not validated? ```jsx <h1>Products Lists</h1> <ul> <li ngFor="let p of products" ngIf="p.stock > 0"> {{ p.name }} </li> </ul> ``` Answer: We cannot have ngFor and ngIf on the same element