Hvorfor skal du bruge denne JavaScript online -test

JavaScript Online Test er designet og valideret af brancheeksperter til at hjælpe tech -rekrutterere og ansætte ledere til at vurdere kandidatens JavaScript -programmeringsevner. JavaScript -testskærmen viser følgende færdigheder, som ansættelse af ledere ser efter i kandidater: JavaScript Fundamentals: Variabler, hvis/andet, operatører, boolsk logik, funktioner, arrays, genstande, sløjfer, strenge ES6: Arrow -funktioner, destruktion, spredningsoperatør, valgfri kæde (ES2020) osv. Objektorienteret programmering: Prototypisk arv, konstruktørfunktioner (ES5), klasser (ES6), indkapsling, abstraktion, arv og polymorfisme Core JavaScript-koncepter som 'Dette', 'Call', 'Bind', højere orden funktioner, lukninger, timere, tilbagekald, iife Asynkron JavaScript: Begivenhedssløjfe, løfter, async/venter JSON -data fra API -kilde ved hjælp af AJAX JavaScript i browseren: Dom, Cookies og begivenheder Opret dynamiske HTML -komponenter som værksted, lysbilledshows, gallerier med miniaturebilleder Debugging JavaScript ved hjælp af browserkonsol og inspektør Oplev design af tværbrowser og kompatible UI på tværs af enheder Den indsigt, der genereres fra denne vurdering, kan bruges af rekrutterere og ansættelsesledere til at identificere de bedste kandidater til rollen. Anti-cheating-funktioner giver dig mulighed for at være komfortabel med at gennemføre vurderinger online.

JavaScript online test

About the test:

The JavaScript test uses scenario-based MCQs to evaluate candidates on JavaScript fundamentals (ES5, ES6), ability to manipulate HTML DOM and Asynchronous programming with Ajax, Fetch API, Promises & Async / Await. The test includes coding questions to evaluate hands-on JavaScript programming skills.

Covered skills:

JavaScript basics (arrays; objects; strings; functions)
Errors and Exception Handling
ES6 (arrow functions; destructuring; spreads)
OOP (classes; constructors; prototypal inheritance)
Handling APIs

Structuring and styling HTML DOM
Working with user data and JSON
higher-order functions and closures
Asynchronous JavaScript (event loop; promises; async/await)

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9 reasons why

Adaface JavaScript online test is the most accurate way to shortlist JavaScript Developers

Reason #1

Tests for on-the-job skills

JavaScript Online Test er designet og valideret af brancheeksperter til at hjælpe tech -rekrutterere og ansætte ledere til at vurdere kandidatens JavaScript -programmeringsevner. JavaScript -testskærmen viser følgende færdigheder, som ansættelse af ledere ser efter i kandidater:

JavaScript Fundamentals: Variabler, hvis/andet, operatører, boolsk logik, funktioner, arrays, genstande, sløjfer, strenge
ES6: Arrow -funktioner, destruktion, spredningsoperatør, valgfri kæde (ES2020) osv.
Objektorienteret programmering: Prototypisk arv, konstruktørfunktioner (ES5), klasser (ES6), indkapsling, abstraktion, arv og polymorfisme
Core JavaScript-koncepter som 'Dette', 'Call', 'Bind', højere orden funktioner, lukninger, timere, tilbagekald, iife
Asynkron JavaScript: Begivenhedssløjfe, løfter, async/venter
JSON -data fra API -kilde ved hjælp af AJAX
JavaScript i browseren: Dom, Cookies og begivenheder
Opret dynamiske HTML -komponenter som værksted, lysbilledshows, gallerier med miniaturebilleder
Debugging JavaScript ved hjælp af browserkonsol og inspektør
Oplev design af tværbrowser og kompatible UI på tværs af enheder

Den indsigt, der genereres fra denne vurdering, kan bruges af rekrutterere og ansættelsesledere til at identificere de bedste kandidater til rollen. Anti-cheating-funktioner giver dig mulighed for at være komfortabel med at gennemføre vurderinger online.

Reason #2

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.

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.

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

🧐 Question
Medium Async Await Promises Promises Async-Await	Solve
What will the following code output? 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
Easy Bitcoin prices Axios Promises	Solve
Review the following JavaScript code and pick the correct options: 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?
Medium Promise Resolve Promises Async-Await	Solve
What does the following code output?
Easy Throw, Try, Async Promises Async-Await	Solve
What does the following JS code output?
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 Async Await Promises Promises Async-Await	2 mins JavaScript	Solve
What will the following code output? 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
	Easy Bitcoin prices Axios Promises	2 mins JavaScript	Solve
Review the following JavaScript code and pick the correct options: 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	2 mins JavaScript	Solve
What will the output of the following JavaScript code be?
	Medium Promise Resolve Promises Async-Await	2 mins JavaScript	Solve
What does the following code output?
	Easy Throw, Try, Async Promises Async-Await	2 mins JavaScript	Solve
What does the following JS code output?
	Easy Registration Queue Logic Queues	30 mins Coding	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	30 mins Coding	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	💪 Difficulty	⌛ Time
	Async Await Promises Promises Async-Await	JavaScript	Medium	2 mins	Solve
What will the following code output? 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
	Bitcoin prices Axios Promises	JavaScript	Easy	2 mins	Solve
Review the following JavaScript code and pick the correct options: 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?
	My Module Scope	JavaScript	Medium	2 mins	Solve
What will the output of the following JavaScript code be?
	Promise Resolve Promises Async-Await	JavaScript	Medium	2 mins	Solve
What does the following code output?
	Throw, Try, Async Promises Async-Await	JavaScript	Easy	2 mins	Solve
What does the following JS code output?
	Registration Queue Logic Queues	Coding	Easy	30 mins	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
	Visitors Count Strings Logic	Coding	Medium	30 mins	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.

Reason #4

1200+ customers in 75 countries

Med Adaface var vi i stand til at optimere vores indledende screeningsproces med op til 75%, hvilket frigør dyrebar tid for både ansættelsesledere og vores talentindsamlingsteam!

Brandon Lee, Leder af mennesker, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JavaScript 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.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the JavaScript 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.

Reason #7

Detailed scorecards & benchmarks

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.

Reason #9

Advanced Proctoring

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Hvordan tilpasser du testen for senior JavaScript -udviklere?

Spørgsmålene til seniorudviklere vurderer avancerede emner som:

Avancerede koncepter såsom lukninger, prototypisk arv, IIFE'er
Avanceret DOM og begivenhedsdrevet programmering
Forståelse af JavaScript fungerer bag kulisserne: motorer, opkaldsstakken, hejsning, scoping, 'dette' nøgleord, referenceværdier
Avancerede funktioner: Arrow-funktioner, førsteklasses og højere ordens funktioner, bind og lukninger
Opbevaring af data med cookies, lokal opbevaring og opbevaring af session
Cache med servicearbejdere
Netværkskoncepter som CORS og JSONP
Tidligere klassemønstre: Prototype mønster, pseudo klassisk/ konstruktørmønster
Fordele og ulemper ved tilbagekald, løfter og async/venter
Avancerede datastrukturer som kort, sæt
Indsamling af affald og hukommelsesstyring
Oprettelse af en brugerdefineret JavaScript -ramme eller bibliotek
JavaScript Tooling: NPM, pakke, Babel

Derudover kan testen bestå af spørgsmål, der vurderer kandidaternes evne til at bruge databaser (som SQL) og rammer (som React, Angular, Vue og Svelte).

What roles can I use the JavaScript Online Test for?

JavaScript Developer
Frontend Engineer
Backend JavaScript Developer
Full Stack Software Developer
NodeJS Developer
React Developer
Angular Developer
Software Engineer 1

What topics are covered in the JavaScript online test?

Typer og operatører

Loops

Variabler

Funktioner

Arrays

Genstande

Strenge

Dom

HTML/ CSS Fundamentals

Lukninger

Iife

Ups

ES6

Matematik

JSON

Async/venter

Løfter

Pile

Timere

Destructuring

Lokal opbevaring

Session Storage

Konsol

Dette ',' opkald ',' bind 'nøgleord

Begivenhedshåndtering

Undtagelseshåndtering

Form håndtering

Servicearbejdere

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De ansættelsesledere mente, at de gennem de tekniske spørgsmål, som de stillede under panelinterviewene, kunne fortælle, hvilke kandidater der havde bedre scoringer, og differentierede med dem, der ikke scorede så godt. De er meget tilfreds med kvaliteten af kandidater, der er på listen med Adaface -screeningen.

85%

Reduktion i screeningstid

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Javascript Online Test FAQs

Kan jeg evaluere rammefærdigheder sammen med JavaScript?

Ja. Vi leverer klar-til-gå-tests, hvor du kan vurdere flere relevante JavaScript-færdigheder i en enkelt vurdering. F.eks CSS og kodningsevner i en enkelt vurdering.

Vi leverer også tilpassede vurderinger, hvor vi tilpasser vurderingen i henhold til din jobbeskrivelse.

Kan jeg bruge denne test til evaluering af backend javascript -udvikler?

Ja. Denne test bruges til at vurdere kerne JavaScript -færdigheder. Spørgsmålene er designet til at evaluere fristående JS -færdigheder uden at afhænge af HTML/ CSS. Antag, at din rolle kræver, at kandidater har kendskab til backend JS -rammer som Nodejs. I dette tilfælde kan du undersøge at bruge vores JS backend-udviklervurdering, hvor JS og Nodejs og kodningsevner evalueres i en enkelt prøve.

Kan jeg bruge denne test til React Native Developer?

Ja. Evalueringen er fokuseret på JS -færdigheder. Du kan også kontrollere ADAFACE React Native Assessment, der evaluerer React Native, JS og kodningsevner i en enkelt test. Du kan også anmode om en brugerdefineret react indfødt test, der vil blive designet i henhold til din jobbeskrivelse.

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.