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About the test:

JavaScript节点在线测试使用基于方案的MCQ来评估候选者对使用Node.js的JavaScript编程的理解,用于服务器端开发。该测试评估了候选人的Node.js架构,功能和功能,包括模块,事件,流和文件系统。它还评估了他们对Node.js生态系统的熟悉,例如Node Package Manager(NPM),Express.js和Socket.io,以及它们使用Node.js构建Restful API的能力。

Covered skills:

  • JavaScript基础知识
  • JS糟糕
  • 异步node.js和承诺
  • 请求响应生命周期
  • JS ES6
  • 处理API
  • Node.js模块系统
  • JavaScript编程

9 reasons why
9 reasons why

Adaface JavaScript & NodeJS Test is the most accurate way to shortlist 完整的堆栈Web开发人员s



Reason #1

Tests for on-the-job skills

The JavaScript & NodeJS 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:

  • 了解JavaScript的基本语法和功能
  • 在JavaScript中使用ES6功能
  • 在JavaScript中实现面向对象的编程概念
  • 处理API并在JavaScript中提出HTTP请求
  • 在node.js中使用异步编程和承诺
  • 了解Node.js模块系统并使用NPM软件包
  • 了解node.js中的请求响应生命周期
  • 精通JavaScript编程
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

这些只是我们库中有10,000多个问题的一个小样本。关于此的实际问题 JavaScript和Nodejs测试 将是不可行的.

🧐 Question

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

Medium

I/O cycle and main module
Event Loop
Solve
Review the following NodeJS code:
 image
Pick the correct statements:

A: X will be logged after Y always
B: Y will be logged after X always
C: The order of executing timeout and immediate callbacks is non-deterministic and is bound by the performance of the process
D: In this case, the function calls are scheduled in the main module and not in the I/O cycle
E: In this case, the function calls are scheduled in the I/O cycle so setImmediate is always executed before any timers scheduled in the I/O phase, independently of how many timers are left

Easy

Res methods
Solve
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request?
A) Will be left hanging indefinitely

B) Will get an internal server error - 500 

C) Will get a service unavailable error - 503

D) Will be left hanging for a while and then request timeout error - 408

Medium

Phases and Timers
Event Loop
Solve
Review the following NodeJS code:
 image
Pick the correct statements:

A: Adaface will be logged after Lovelace.
B: Lovelace will be logged after Adaface.
C: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback which takes 10 seconds. Only after this is finished, the event loop will execute the timers that are finished. So the timeout call back will actually be executed after 205 ms even though it is scheduled to be run after 200 ms
D: Once the asyncOpThatTakes195ms completes reading the file, it starts executing the callback. While executing the callback, the scheduled timer becomes ready to be executed. So the runtime executes the timer and then completes processing the callback.

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

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

Medium

I/O cycle and main module
Event Loop

2 mins

NodeJS
Solve

Easy

Res methods

3 mins

NodeJS
Solve

Medium

Phases and Timers
Event Loop

2 mins

NodeJS
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
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
I/O cycle and main module
Event Loop
NodeJS
Medium2 mins
Solve
Res methods
NodeJS
Easy3 mins
Solve
Phases and Timers
Event Loop
NodeJS
Medium2 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

借助 Adaface,我们能够将初步筛选流程优化达 75% 以上,为招聘经理和我们的人才招聘团队节省了宝贵的时间!


Brandon Lee, 人事主管, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JavaScript和Nodejs测试 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 JavaScript和Nodejs测试 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

查看样本记分卡
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 JavaScript & NodeJS Assessment Test

Why you should use Pre-employment JavaScript & NodeJS Online Test?

The JavaScript和Nodejs测试 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:

  • 理解JavaScript基础知识和语法
  • JavaScript ES6功能和增强知识
  • 熟练掌握JavaScript面向对象的编程原理
  • 有处理API并提出AJAX请求的经验
  • 使用承诺了解Node.js中的异步编程
  • Node.js模块系统的知识和实现模块化代码
  • 熟悉node.js中的请求响应生命周期
  • 熟练掌握JavaScript编程和解决问题
  • 能够实施和使用JavaScript数据结构
  • JavaScript功能编程概念的知识

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 JavaScript & NodeJS Online Test?

  • JS ES6

    JS ES6是指eCmascript 6,为JavaScript引入了各种新功能和语法增强功能。该技能衡量了候选人对现代JavaScript技术的了解,例如箭头功能,模板文字,破坏和模块。

  • 处理APIS

    此技能评估了候选人使用Web API互动的能力JavaScript。它衡量了他们在提出HTTP请求,处理响应,解析JSON数据和错误处理方面的熟练程度。测试此技能至关重要,因为它反映了候选人与外部数据源合作并将其集成到应用程序中的能力。

  • 异步node.js and Prolane and Proses and Prosising

    此技能评估了候选人对候选人的了解Node.js中的异步编程,利用诸如回调和承诺之类的概念。它衡量了他们编写非阻滞代码并有效处理异步任务的能力。测试此技能很重要,因为它是node.js开发的一个基本方面,并确保候选人可以有效地解决复杂的问题。

  • node.js模块系统

    node.js模块系统是涵盖Node.js应用程序中导入和导出模块的知识的关键技能。该技能衡量了候选人对如何使用模块结构和组织代码的理解,鼓励代码可重复性和可维护性。

  • 请求响应生命周期

    此技能评估了候选人对候选人对生命周期的理解Node.js Web应用程序中的请求和响应。它涵盖了诸如处理传入请求,处理数据,管理中间件以及发送适当响应之类的概念。测试此技能有助于评估候选人对Node.js应用程序中数据流的理解及其构建强大,高效的Web应用程序的能力。

  • JavaScript编程

    此技能涵盖了该技能JavaScript编程中候选人的总体能力。它涵盖了他们在解决编程挑战,编写清洁和可读的代码,了解复杂算法以及采用最佳实践方面的熟练程度。测试此技能可确保候选人在JavaScript编程中具有坚实的基础,并可以为基于JavaScript的项目有效贡献。

  • 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 JavaScript和Nodejs测试 to be based on.

    变量
    功能
    数据类型
    操作员
    控制流
    数组
    对象
    字符串
    箭头功能
    模板文字
    块范围
    破坏性
    传播和休息操作员
    课程
    遗产
    封装
    多态性
    承诺
    异步/等待
    提取API
    xhr
    JSON数据操纵
    处理错误和例外
    文件系统
    活动和活动发射器
    模块
    package.json
    NPM命令
    路由
    中间件
    HTTP方法
    请求标题
    响应状态代码
    饼干
    科尔斯
    身份验证和授权
    缓存
    安全
    测试方法
    调试技术
    代码优化
    代码组织
    资源管理
    性能优化
    node.js中的错误处理
    使用数据库
    REST API开发
    与外部API集成
    并发和并行性
    事件驱动的编程
    回调功能
    数据操纵和转换
    模块导出
    事件循环

What roles can I use the JavaScript & NodeJS Online Test for?

  • 完整的堆栈Web开发人员
  • JavaScript开发人员
  • Nodejs开发人员
  • Web开发人员

How is the JavaScript & NodeJS 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

  • 理解JavaScript封闭和范围
  • 与JavaScript库和框架合作的经验
  • 在JavaScript中了解安全编码实践的知识
  • 精通调试和故障排除JavaScript代码
  • 能够优化性能的JavaScript代码
  • 了解Node.js中事件驱动的架构
  • 在Node.js中使用文件系统操作的经验
  • 与node.js集成数据库的知识
  • 熟练使用Express.js框架构建恢复API
  • 了解Node.js中的Web插座和实时通信

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

Singapore government logo

招聘经理认为,通过小组面试中提出的技术问题,他们能够判断哪些候选人得分更高,并与得分较差的候选人区分开来。他们是 非常满意 通过 Adaface 筛选入围的候选人的质量。


85%
减少筛查时间

JavaScript & NodeJS Hiring Test 常见问题解答

我可以将多个技能结合在一起,为一个自定义评估吗?

是的,一点没错。自定义评估是根据您的职位描述进行的,并将包括有关您指定的所有必备技能的问题。

您是否有任何反交换或策略功能?

我们具有以下反交易功能:

  • 不可解决的问题
  • IP策略
  • Web Protoring
  • 网络摄像头Proctoring
  • 窃检测
  • 安全浏览器

阅读有关[Proctoring功能](https://www.adaface.com/proctoring)的更多信息。

如何解释考试成绩?

要记住的主要问题是评估是消除工具,而不是选择工具。优化了技能评估,以帮助您消除在技术上没有资格担任该角色的候选人,它没有进行优化以帮助您找到该角色的最佳候选人。因此,使用评估的理想方法是确定阈值分数(通常为55%,我们为您提供基准测试),并邀请所有在下一轮面试中得分高于门槛的候选人。

我可以使用该测试的经验水平?

每个ADAFACE评估都是为您的职位描述/理想候选角色定制的(我们的主题专家将从我们的10000多个问题的图书馆中选择正确的问题)。可以为任何经验级别定制此评估。

每个候选人都会得到同样的问题吗?

是的,这使您比较候选人变得容易得多。 MCQ问题的选项和问题顺序是随机的。我们有[抗欺骗/策略](https://www.adaface.com/proctoring)功能。在我们的企业计划中,我们还可以选择使用类似难度级别的问题创建多个版本的相同评估。

我是候选人。我可以尝试练习测试吗?

不,不幸的是,我们目前不支持实践测试。但是,您可以使用我们的[示例问题](https://www.adaface.com/questions)进行练习。

使用此测试的成本是多少?

您可以查看我们的[定价计划](https://www.adaface.com/pricing/)。

我可以免费试用吗?

我刚刚搬到了一个付费计划。我如何要求自定义评估?

Ready to use the Adaface JavaScript和Nodejs测试?
Ready to use the Adaface JavaScript和Nodejs测试?
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40 min tests.
No trick questions.
Accurate shortlisting.
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