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React Native Online Test (React Native + JavaScript)

About the test:

Den indfødte React Test bruger scenariebaserede MCQ-spørgsmål til at evaluere en kandidats evne til at opbygge interaktive, mediirige reaktioner i indfødte applikationer og offentliggøre dem ved hjælp af Google/ App-butikker. Spørgsmålene vurderer Core React Native Concepts (komponenter, stat og rekvisitter), grundlæggende ledelsesfundament, adgang til indfødte funktioner og korrekt brug af RESTful API'er. Testen har også MCQ'er og kodningsspørgsmål til evaluering af praktiske JavaScript-programmeringsevner.

Covered skills:

  • Core React Native (komponenter; stat; rekvisitter)
  • Håndtering af skærmlayouts
  • Rendering rullbare og brugerdefinerede lister
  • Navigation mellem skærme
  • In-app-godkendelse
  • Debugging React Native Apps
  • Udgivelse til Apple og Play Stores
  • Funktionelle komponenter og kroge
  • Stylede komponenter
  • Statsstyring i komponenter
  • Asynkrone API'er
  • Responsive designs
  • Persistens og sessionopbevaring

9 reasons why
9 reasons why

Adaface React Native Online Test (React Native + JavaScript) is the most accurate way to shortlist React Native Developers



Reason #1

Tests for on-the-job skills

The React Native Online Test (React Native + JavaScript) 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:

  • Dygtige til reagerende indfødte komponenter, stat og rekvisitter
  • Erfaring med funktionelle komponenter og kroge
  • Evne til at håndtere skærmlayouts effektivt
  • Fortrolighed med stylede komponenter
  • Kapacitet til at gengive rulelige og brugerdefinerede lister
  • Kompetent i statsledelse inden for komponenter
  • Kendskab til navigation mellem skærme
  • Forståelse af asynkron API'er
  • Færdighed i godkendelse i appen
  • Evne til at skabe responsive design
  • Færdigheder i fejlfinding React Native Apps
  • Forståelse af persistens og opbevaring af session
  • Kendskab til udgivelse til Apple og Play Stores
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 React Native Online Test vil være ikke-gåbart.

🧐 Question

Medium

Fallback Error
Error Boundaries
Solve
Review the following React Native Code:
 image
We have two ErrorBoundary classes. Notice that both MyComponent and ErrorBoundaryOne throw errors. What ‘Text’ would be rendered in the screen?

Easy

Flex
Solve
What is the best way to create following React Native layout with containers 1,2,3?
 image
 image

Medium

Home and Details Screen
Navigation
Solve
Review the following React Native code:
 image
The app has two screens (Home and Details) as shown below:
 image
 image
Review the following tests:

Test 1 - Click on ‘Navigate.navigate(’Details’)’ button on Home screen, then the same button on the Details screen. Then click on the “back” button of the device/screen.

Test 2 - Click on ‘Navigate.push(’Details’)’ button on Home screen, then the same button on the Details screen. Then we clicked on the “back” button of the device/screen.

Test 3 -  Click on ‘Navigate.navigate(’Details’)’ button on Home screen, then ‘Navigate.push(’Details’)’ button on the Details screen. Then click on the “back” button of the device/ screen.

Test 4 -  Click on ‘Navigate.push(’Details’)’ button on Home screen, then ‘Navigate.navigate(’Details’)’ button on the Details screen. Then click on the “back” button of the device/ screen.
Pick the correct statements:

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

Fallback Error
Error Boundaries

3 mins

React Native
Solve

Easy

Flex

2 mins

React Native
Solve

Medium

Home and Details Screen
Navigation

3 mins

React Native
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
Fallback Error
Error Boundaries
React Native
Medium3 mins
Solve
Flex
React Native
Easy2 mins
Solve
Home and Details Screen
Navigation
React Native
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 React Native 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 React Native 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 React Native Online Test (React Native + JavaScript)

Why you should use React Native Online Test (React Native + JavaScript)?

The React Native 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:

  • Forståelse af kerne reagerer indfødte koncepter såsom komponenter, tilstand og rekvisitter.
  • Færdigheder i funktionelle komponenter og kroge.
  • Evne til at håndtere skærmlayouts effektivt.
  • Erfaring med stylede komponenter for styling reagerer indfødte komponenter.
  • Kendskab til gengivelse af rulle og brugerdefinerede lister i React Native.
  • Stærk forståelse af statsstyring i reaktiske indfødte komponenter.
  • Fortrolighed med navigation mellem skærme i React Native.
  • Erfaring med asynkrone API'er i React Native.
  • Færdigheder i implementering af in-app-godkendelse i React Native.
  • Evne til at skabe responsive design i React Native.

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 React Native Online Test (React Native + JavaScript)?

  • funktionelle komponenter og kroge

    Funktionelle komponenter og kroge giver udviklere mulighed for at skrive mere Kortfattet og genanvendelig kode i React Native. Inkludering af denne færdighed i testen hjælper med at vurdere en kandidats evne til at udnytte disse moderne react -funktioner til bedre kodeorganisation og ydeevne.

  • Håndteringsskærmlayouts

    Håndtering af skærmlayouts er afgørende for at skabe intuitiv og brugervenlige mobile applikationer. Denne færdighed måles i testen for at evaluere en kandidats forståelse af at skabe responsive layouts og håndtere forskellige skærmstørrelser i React-indfødte.

  • stylede komponenter

    Stylet-komponenter gør det muligt for udviklere at skrive CSS -in-JS for at style reagere indfødte komponenter. Evaluering af denne færdighed hjælper med at bestemme en kandidats færdigheder i at bruge stylede komponenter til effektiv og vedligeholdelig styling i React Native Applications.

  • Rendering rulle og brugerdefinerede lister </H4> <p> Rendering Rollable og brugerdefinerede lister er en almindelig Krav i mobile applikationer. Måling af denne færdighed i testen sikrer, at kandidater effektivt kan gengive og styre lister over data i React Native for optimal ydelse og brugeroplevelse. </p> <h4> statsstyring i komponenter

    Statsstyring er afgørende for Bygning af komplekse og interaktive reagerer indfødte applikationer. Evaluering af denne færdighed hjælper med at måle en kandidats evne til effektivt at styre staten inden for reagerende indfødte komponenter ved hjælp af teknikker som UseState eller UseContext.

  • Navigation mellem skærme

    Navigation mellem skærme er en væsentlig del af mobilappen udvikling. Denne færdighed evalueres for at vurdere en kandidats forståelse af implementering af navigation i React -indfødte ved hjælp af biblioteker som React Navigation, hvilket tillader problemfri overgange mellem forskellige skærme.

  • asynkrone API'er

    asynkroniske API'er bruges ofte i Udvikling af mobil app til håndtering af netværksanmodninger, hentning af data og mere. Hvis du inkluderer denne færdighed i testen, hjælper det Autentificering er en vigtig færdighed til at evaluere en kandidats fortrolighed med implementering af sikker brugergodkendelse inden for React Native Applications. Det måler deres forståelse af godkendelsesstrømme, tokenstyring og integration med godkendelsestjenester som OAuth eller Firebase -godkendelse.

  • Responsive designs

    Responsive design er afgørende for at skabe mobile applikationer, der tilpasser sig til forskellige skærmstørrelser og orienteringer. Evaluering af denne færdighed sikrer, at kandidater kan opbygge reagerende indfødte apps, der giver en konsekvent og optimal brugeroplevelse på tværs af forskellige enheder.

  • fejlfinding React Native Apps

    Debugging -færdigheder er vigtige for at identificere og løse problemer I reagerende indfødte applikationer. Måling af denne færdighed hjælper med at evaluere en kandidats færdigheder i at bruge react indfødte fejlfindingsværktøjer, fejlfinding af almindelige fejl og sikre deres glatte funktion af deres applikationer.

  • persistens og sessionopbevaring

    persistens og session opbevaring involverer at gemme data lokalt i en React Native -applikation for at give en problemfri brugeroplevelse. Evaluering af denne færdighed hjælper med at bestemme en kandidats evne til at implementere datapersistens ved hjælp af teknikker som asyncstorage eller sqlite for sikker og effektiv datalagring og hentning Og Play Stores er det sidste trin i at bringe en React Native -app til brugere. Denne færdighed vurderer en kandidats forståelse af appindsendelsesprocessen, herunder appunderskrivning, retningslinjer for butik og konfiguration af de nødvendige build -indstillinger til succesfuldt at offentliggøre en app på begge platforme.

  • 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 React Native Online Test to be based on.

    Reager indfødte komponenter
    Stat
    Rekvisitter
    Funktionelle komponenter
    Kroge
    Skærmlayouts
    Stylede komponenter
    Rulbare lister
    Brugerdefinerede lister
    Statsstyring
    Navigation
    Asynkrone API'er
    In-app-godkendelse
    Responsive designs
    Fejlfinding
    Udholdenhed
    Session Storage
    Forlagsvirksomhed
    Apple butik
    Legetøjsbutik
    Core React Native
    Håndtering af undtagelser
    Fejlhåndtering
    Komponent livscyklus
    JSON PARSING
    Databinding
    Formvalidering
    Begivenhedshåndtering
    Rekvisidering af validering
    Propboring
    Komponenter med højere orden
    Redux
    Redux saga
    Mobx
    React Navigation
    React Navigation V5
    React Navigation V6
    Flatlist
    Sectionlist
    VirtualizedList
    Asyncstorage
    Netinfo
    React Native Debugger
    Præstationsoptimering
    Lokalisering
    Push -meddelelser
    Appinstallation
    App -underskrift
    Fejlovervågning
    Enhedstest
    Integrationstest
    Ende-til-ende test
    Kodesignering
    Kontinuerlig integration
    Kontinuerlig implementering
    React Native CLI
    Expo Cli

What roles can I use the React Native Online Test (React Native + JavaScript) for?

  • React Native Developer
  • React Native Mobile Developer
  • React Native iOS -udvikler
  • Senior Software Developer (React Native)
  • React Native Engineer
  • Android Developer (React Native)
  • React Native Lead
  • Senior Mobile Developer (React Native)

How is the React Native Online Test (React Native + JavaScript) 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

  • Dygtige til fejlfinding af react indfødte apps.
  • Kendskab til persistens og sessionopbevaring i React Native.
  • Færdigheder i at udgive React Native Apps til Apple og Play Stores.
  • Ekspertise i håndtering af undtagelser og fejl i React Native.
  • Evne til at integrere tredjepartsbiblioteker og pakker i React Native Projects.
  • Erfaring med implementering af push -meddelelser i React Native.
  • Fortrolighed med implementering af animationer og overgange i React Native.
  • Kendskab til offline- og cache -strategier i React Native.
  • Evne til at optimere ydelsen i React Native Apps.

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

React Native Online Test (React Native + JavaScript) Ofte stillede spørgsmål

Can I evaluate JavaScript and React Native skills in the same assessment?

Yes. You can check our standard JavaScript test to get a sense of JavaScript questions.

Can I evaluate Android and React Native skills in the same assessment?

Yes. You can evaluate Android and React Native skills in the same assessment. You can review our standard Android test to get a sense of what kind of questions will be included. The final assessment will include questions to evaluate JavaScript, Android, React Native and coding skills in the same test.

Can I evaluate iOS and React Native skills in the same assessment?

Yes. You can evaluate iOS and React Native skills in the same assessment. You can review our standard iOS test to get a sense of what kind of questions will be included. The final assessment will include questions to evaluate JavaScript, iOS, React Native and coding skills in the same test.

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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