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About the test:

Den front-end-udvikler online-test bruger scenariebaserede MCQ'er til at evaluere kandidater om deres viden om front-end webudvikling, som involverer oprettelse og implementering af brugergrænseflader ved hjælp af HTML, CSS og JavaScript. Testen vurderer kandidaternes færdigheder i responsivt design, layout og gittersystemer, scripting på klientsiden, JavaScript-rammer såsom React eller Angular, Cross-Browser-kompatibilitet og optimering af webpræstation.

Covered skills:

  • Html
  • JavaScript
  • UI/UX
  • Fejlfinding
  • CSS
  • Responsivt design
  • Git
  • Præstationsoptimering

9 reasons why
9 reasons why

Adaface Frontend Developer Test is the most accurate way to shortlist Front End Developers



Reason #1

Tests for on-the-job skills

The Frontend Developer Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Evne til at skabe responsive design ved hjælp af HTML og CSS
  • Stærk forståelse af JavaScript -syntaks og funktioner
  • Erfaring med UI/UX -principper og bedste praksis
  • Kendskab til Git -versionskontrol og evne til at samarbejde om kode
  • Dygtige til fejlfinding og fejlfinding af kodeproblemer
  • Evne til at optimere kode til ydeevne
  • Kendskab til HTML5 og CSS3 -funktioner
  • Fortrolighed med JavaScript -rammer og biblioteker
  • Forståelse af responsive designteknikker
  • Erfaring med tværbrowser-kompatibilitetstest og fejlsøgning
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

Dette er kun en lille prøve fra vores bibliotek med 10.000+ spørgsmål. De faktiske spørgsmål om dette Frontend Developer Online Test vil være ikke-gåbart.

🧐 Question

Medium

Form Logs
Forms
Solve
A web app for a popular AI conference (conducted in New York, with attendees from around the world) uses a signup/login page before users can access their dashboard. The signup/login page uses a form for users to input details and submit. The details are then sent to the backend service for processing. All user actions are logged in a log server. Senior Frontend Engineer, Musk, observed patterns in the issues users are facing with the the web app. Here are the two common patterns that Musk observed in the issues that have been occurring for most users:
 image
 image
Which of the following should Musk do to enhance the user experience with the page?

A: Implement validation using JS event listeners on client-side (e.g., on input or change)
B: Utilize HTML5 built-in form validation attributes (e.g., required, pattern)
C: Use server-side validation and refresh the page on form submission
D: Use a serverless function that processes the user’s form details, saves the user’s entries in the database and responds with validation data

Medium

Interactive Application
JavaScript Rendering
Solve
A senior front-end engineer is tasked with optimizing the loading speed of a web application. The current bottleneck is the large number of JavaScript files that must be downloaded before the application becomes interactive. The engineer noticed that the browser spends a lot of time parsing and executing the JS code before making the application interactive. Which of the following techniques should the engineer apply to address this issue?

Easy

Background Properties
Solve
Consider the following shorthand CSS example:

background: #f7f7f7 url(jolie.jpg) no-repeat scroll 0px 0px;

Which of the following show the individual background properties represented by the shorthand:
 image

Easy

Colorful sentences
Solve
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be?
 image
A: Sentence 1 will be gray, Sentence 2 will be pink.
B: Both sentences will be gray.
C: Sentence 1 will be pink, Sentence 2 will be gray.
D: Both sentences will be pink.
E: The code does not make sense; will throw an error.

Easy

Links
Solve
In the following HTML, what will be the color of link with class "mark"
 image

Medium

Let's Hack
CSS Property
Solve
Consider the following HTML and CSS:
 image
 image
Which additional CSS rule(s) will render the following image? Choose ALL that apply.
 image
A:
div{
  flex-direction : column;
  align-items : center;
}
B:
div{
  flex-direction : row;
  align-items: center;
}
C:
div{
  flex-direction: column;
  justify-content: center;
}
D:
div{
  flex-direction: row;
  justify-content: center;
}

Medium

Async Await Promises
Promises
Async-Await
Solve
What will the following code output?
 image
A: 24 after 5 seconds and after another 5 seconds, another 24
B: 24 followed by another 24 immediately
C: 24 immediately and another 24 after 5 seconds
D: After 5 seconds, 24 and 24
E: Undefined
F: NaN
G: None of these

Medium

Bitcoin prices
Axios
Promises
Solve
Review the following JavaScript code and pick the correct options: 
 image
Assume that the API returns a successful 200 response code and a JSON object as the response body. What would the value of ‘a’ be after the code is executed?

Medium

My Module
Scope
Solve
What will the output of the following JavaScript code be?
 image
 image

Medium

Promise Resolve
Promises
Async-Await
Solve
What does the following code output? 
 image

Easy

Throw, Try, Async
Promises
Async-Await
Solve
What does the following JS code output?
 image

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

Form Logs
Forms

3 mins

Frontend
Solve

Medium

Interactive Application
JavaScript Rendering

2 mins

Frontend
Solve

Easy

Background Properties

2 mins

HTML/CSS
Solve

Easy

Colorful sentences

2 mins

HTML/CSS
Solve

Easy

Links

2 mins

HTML/CSS
Solve

Medium

Let's Hack
CSS Property

3 mins

HTML/CSS
Solve

Medium

Async Await Promises
Promises
Async-Await

2 mins

JavaScript
Solve

Medium

Bitcoin prices
Axios
Promises

2 mins

JavaScript
Solve

Medium

My Module
Scope

2 mins

JavaScript
Solve

Medium

Promise Resolve
Promises
Async-Await

2 mins

JavaScript
Solve

Easy

Throw, Try, Async
Promises
Async-Await

2 mins

JavaScript
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Form Logs
Forms
Frontend
Medium3 mins
Solve
Interactive Application
JavaScript Rendering
Frontend
Medium2 mins
Solve
Background Properties
HTML/CSS
Easy2 mins
Solve
Colorful sentences
HTML/CSS
Easy2 mins
Solve
Links
HTML/CSS
Easy2 mins
Solve
Let's Hack
CSS Property
HTML/CSS
Medium3 mins
Solve
Async Await Promises
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Bitcoin prices
Axios
Promises
JavaScript
Medium2 mins
Solve
My Module
Scope
JavaScript
Medium2 mins
Solve
Promise Resolve
Promises
Async-Await
JavaScript
Medium2 mins
Solve
Throw, Try, Async
Promises
Async-Await
JavaScript
Easy2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

Med Adaface var vi i stand til at optimere vores indledende screeningsproces med op mod 75 %, hvilket frigjorde kostbar tid for både ansættelsesledere og vores talentanskaffelsesteam!


Brandon Lee, Leder af mennesker, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Frontend Developer Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Frontend Developer Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Se prøvescorekort
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Frontend Developer Assessment Test

Why you should use Pre-employment Frontend Developer Online Test?

The Frontend Developer Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • HTML -markering og struktur
  • CSS -styling og positionering
  • JavaScript Language Fundamentals
  • Responsive designprincipper
  • UI/UX bedste praksis
  • Versionskontrol med git
  • Debugging og fejlfinding
  • Ydelsesoptimeringsteknikker
  • Avancerede JavaScript -koncepter
  • Front-end rammer (f.eks. React, Angular)

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Frontend Developer Online Test?

  • html

    HTML står for Hypertext Markup Language. Det er det standard markeringsprog, der bruges til at skabe strukturen og indholdet af websider. HTML er vigtig for front-end-udviklere, da det fungerer som grundlaget for websteder og giver mulighed for korrekt organisering og præsentation af information.

  • css

    CSS står for cascading-stilark. Det er et stilarksprog, der bruges til at beskrive udseendet og formateringen af ​​et dokument skrevet i HTML. CSS giver front-end-udviklere mulighed for at kontrollere det visuelle udseende på websider, herunder layout, farver, skrifttyper og animationer.

  • javascript

    javascript er et programmeringssprog, der primært bruges til webudvikling . Det giver mulighed for implementering af interaktive elementer, dynamisk indhold og avancerede funktionaliteter på websteder. Måling af JavaScript -færdigheder i testen er afgørende for at vurdere en kandidats evne til at skabe engagerende og interaktive brugeroplevelser.

  • responsivt design

    Responsiv design er en tilgang til webudvikling, der sikrer websider gengives godt på forskellige enheder og skærmstørrelser. Det involverer design og kodning af websteder til at være tilpasningsdygtige og give optimal brugeroplevelse, uanset hvilken enhed der bruges. Evaluering af en kandidats forståelse af responsivt design er vigtig, da det afspejler deres evne til at oprette brugervenlige og tilgængelige websteder.

  • ui/ux

    ui (brugergrænseflade) og UX (brugeroplevelse ) Se de visuelle elementer og den samlede oplevelse af at bruge et websted eller en applikation. Evaluering af en kandidats viden om UI- og UX-principper er vigtig, da den bestemmer deres evne til at designe brugervenlige grænseflader og optimere brugerinteraktioner med produktet.

  • git

    git er en distribueret version Kontrolsystem, der bruges til sporing af ændringer i kode under softwareudvikling. Det giver udviklere mulighed for at samarbejde, styre forskellige versioner af projektet og let udføre rollbacks eller fusion. Det er vigtigt at inkludere Git i testen, da den vurderer en kandidats færdigheder i at bruge et meget brugt og industristandardværktøj til kodestyring.

  • debugging

    debugging er processen med at identificere og fastgøre Fejl eller defekter i et softwareprogram. Det involverer analyse af kode, sporing af udførelsesstrømmen og fejlfindingsproblemer for at sikre, at programmet fungerer som tilsigtet. Evaluering af en kandidats fejlfindingsevner er vigtig, da den demonstrerer deres evne til at identificere og løse problemer i kodebasen og sikrer produktionen af ​​software af høj kvalitet.

  • Performance Optimization

    Performance Optimization involverer at forbedre Hastighed, lydhørhed og effektivitet på et websted eller applikation. Ved at optimere kode, minimere netværksanmodninger og forbedre cache-strategier, kan front-end-udviklere forbedre brugeroplevelsen og reducere belastningstider. Inkludering af præstationsoptimering i vurderingen giver rekrutterere mulighed for at måle en kandidats færdigheder i optimering af webaktiver for optimal ydeevne.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Frontend Developer Online Test to be based on.

    Html
    CSS
    JavaScript
    ES6
    Responsivt design
    UI/UX
    Git
    Fejlfinding
    Præstationsoptimering
    HTML5
    CSS3
    Responsive billeder
    Semantisk HTML
    CSS -forarbejdere
    Flexbox
    Gitterlayout
    Overgange
    Transformerer
    Animationer
    Lukninger
    Prototype
    Dom manipulation
    Begivenhedshåndtering
    Ajax
    Løfter
    Asynkron programmering
    Fejlhåndtering
    Array -metoder
    Objektorienteret programmering
    Designmønstre
    Kodetest
    Kodeanmeldelse
    Krydsbrowser-kompatibilitet
    Responsiv typografi
    Tilgængelighed
    Ydelsesmetrics
    Mobil-første tilgang
    CSS Media -forespørgsler
    Responsive rammer
    Responsive designmønstre
    Kommandolinje
    Forgrening
    Fusionerer
    Træk anmodninger
    Konfliktløsning
    Git Workflow
    Debugging -værktøjer
    Præstationsprofilering
    Optimeringsteknikker
    Browser DevTools
    Implementeringsstrategier

What roles can I use the Frontend Developer Online Test for?

  • Front End Developer
  • Web-udvikler
  • UI -udvikler
  • Frontend Designer
  • JavaScript -udvikler
  • Frontend Engineer
  • Webdesigner
  • UI Engineer
  • UI/UX -udvikler

How is the Frontend Developer Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Enhedstestning (f.eks. Jest, Jasmine)
  • Kode refactoring og vedligeholdelighed
  • Præstationsprofilering og analyse
  • Tilgængelighedsstandarder og retningslinjer
  • Krydsbrowser-kompatibilitet
  • Front-end build-værktøjer (f.eks. Webpack, gulp)
  • Implementering og hosting
  • Front-end Security Best Practices
  • Progressiv Web App (PWA) Development
  • API -integration og JSON -manipulation
  • Browseropbevaring og cache -mekanismer

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Singapore government logo

Ansættelseslederne mente, at de gennem de tekniske spørgsmål, som de stillede under panelinterviewene, var i stand til at fortælle, hvilke kandidater der havde bedre score og differentieret med dem, der ikke scorede så godt. De er meget tilfreds med kvaliteten af ​​de kandidater, der er nomineret med Adaface-screeningen.


85%
Reduktion i screeningstid

Frontend Developer Hiring Test Ofte stillede spørgsmål

Kan jeg kombinere flere færdigheder i en brugerdefineret vurdering?

Ja absolut. Brugerdefinerede vurderinger er oprettet baseret på din jobbeskrivelse og vil omfatte spørgsmål om alle must-have-færdigheder, du angiver.

Har du nogen anti-cheating eller proctoring-funktioner på plads?

Vi har følgende anti-cheating-funktioner på plads:

  • Ikke-gåbare spørgsmål
  • IP Proctoring
  • Webproctoring
  • Webcam Proctoring
  • Detektion af plagiering
  • Sikker browser

Læs mere om Proctoring Features.

Hvordan fortolker jeg testresultater?

Den primære ting at huske på er, at en vurdering er et elimineringsværktøj, ikke et udvælgelsesværktøj. En færdighedsvurdering er optimeret for at hjælpe dig med at eliminere kandidater, der ikke er teknisk kvalificerede til rollen, den er ikke optimeret til at hjælpe dig med at finde den bedste kandidat til rollen. Så den ideelle måde at bruge en vurdering på er at beslutte en tærskelværdi (typisk 55%, vi hjælper dig med benchmark) og inviterer alle kandidater, der scorer over tærsklen for de næste interviewrunder.

Hvilken oplevelsesniveau kan jeg bruge denne test til?

Hver Adaface -vurdering tilpasses til din jobbeskrivelse/ ideel kandidatperson (vores emneeksperter vælger de rigtige spørgsmål til din vurdering fra vores bibliotek på 10000+ spørgsmål). Denne vurdering kan tilpasses til ethvert erfaringsniveau.

Får hver kandidat de samme spørgsmål?

Ja, det gør det meget lettere for dig at sammenligne kandidater. Valgmuligheder for MCQ -spørgsmål og rækkefølgen af ​​spørgsmål randomiseres. Vi har anti-cheating/proctoring funktioner på plads. I vores virksomhedsplan har vi også muligheden for at oprette flere versioner af den samme vurdering med spørgsmål om lignende vanskelighedsniveauer.

Jeg er kandidat. Kan jeg prøve en øvelsestest?

Nej. Desværre understøtter vi ikke praksisforsøg i øjeblikket. Du kan dog bruge vores eksempler på spørgsmål til praksis.

Hvad er omkostningerne ved at bruge denne test?

Du kan tjekke vores prisplaner.

Kan jeg få en gratis prøve?

Ja, du kan tilmelde dig gratis og forhåndsvise denne test.

Jeg flyttede lige til en betalt plan. Hvordan kan jeg anmode om en brugerdefineret vurdering?

Her er en hurtig guide til hvordan man anmoder om en brugerdefineret vurdering på adaface.

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