NPM Online Test

About the test:

The NPM Online Test is preferred by recruiters to assess on-the-job skills of candidates before an interview. It reduces technical screening time by 80% by enabling employers to identify qualified candidates.

Covered skills:

文件夹结构
查询
引用
数据库对象
表

JSON
数据库
操作员
URL

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9 reasons why

Adaface NPM Test is the most accurate way to shortlist JavaScript开发人员s

Reason #1

Tests for on-the-job skills

The NPM 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:

能够有效处理异常和错误
展示对文件夹结构和组织的理解
熟练使用JSON数据
能够为数据库操作编写有效的查询
能够使用参考和操作员等数据库概念的能力
熟悉数据库对象及其关系
擅长于使用URL和处理URL参数
能够在数据库中创建和操纵表

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.

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

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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 NPM在线测试将是不可行的.

🧐 Question
Medium I/O cycle and main module Event Loop	Try practice test
Review the following NodeJS code: 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	Try practice test
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	Try practice test
Review the following NodeJS code: 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.
Medium Async Await Promises Promises Async-Await	Try practice test
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
Medium Bitcoin prices Axios Promises	Try practice test
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	Try practice test
What will the output of the following JavaScript code be?
Medium Promise Resolve Promises Async-Await	Try practice test
What does the following code output?
Easy Throw, Try, Async Promises Async-Await	Try practice test
What does the following JS code output?

	🧐 Question	🔧 Skill
	Medium I/O cycle and main module Event Loop	2 mins NodeJS	Try practice test
Review the following NodeJS code: 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	3 mins NodeJS	Try practice test
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	2 mins NodeJS	Try practice test
Review the following NodeJS code: 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.
	Medium Async Await Promises Promises Async-Await	2 mins JavaScript	Try practice test
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
	Medium Bitcoin prices Axios Promises	2 mins JavaScript	Try practice test
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	Try practice test
What will the output of the following JavaScript code be?
	Medium Promise Resolve Promises Async-Await	2 mins JavaScript	Try practice test
What does the following code output?
	Easy Throw, Try, Async Promises Async-Await	2 mins JavaScript	Try practice test
What does the following JS code output?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	I/O cycle and main module Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: 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
	Res methods	NodeJS	Easy	3 mins	Try practice test
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
	Phases and Timers Event Loop	NodeJS	Medium	2 mins	Try practice test
Review the following NodeJS code: 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.
	Async Await Promises Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
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	Medium	2 mins	Try practice test
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	Try practice test
What will the output of the following JavaScript code be?
	Promise Resolve Promises Async-Await	JavaScript	Medium	2 mins	Try practice test
What does the following code output?
	Throw, Try, Async Promises Async-Await	JavaScript	Easy	2 mins	Try practice test
What does the following JS code output?

Reason #4

1200+ customers in 75 countries

借助 Adaface，我们能够将初步筛选流程优化高达 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

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment NPM在线测试 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 NPM在线测试 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.

Reason #7

Detailed scorecards & benchmarks

查看样本记分卡

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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

Learn more

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About the NPM Assessment Test

Why you should use Pre-employment NPM Online Test?

The NPM在线测试 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:

在NPM中创建和维护文件夹结构
与NPM的JSON合作
在NPM中执行查询
在NPM中使用数据库
在NPM中引用
理解和使用NPM的操作员
在NPM中操纵数据库对象
在NPM中使用URL
在NPM中管理桌
处理NPM中的异常和错误

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 NPM Online Test?

JSON
JSON（JavaScript）对象符号）是一种轻巧的数据交换格式，对于人类而言，它易于读写，易于机器可以解析和生成。评估测试中的这一技能至关重要，因为它反映了候选人对如何使用JSON数据，操纵和解析JSON对象的理解，并在Web应用程序中使用JSON格式。
查询</p> </h4> <p >查询涉及使用SQL从数据库中检索特定数据。评估这项技能对招聘人员来说很重要，因为它衡量了候选人的构建和执行查询的能力，表明他们有效地访问和操纵数据的能力。</p> <h4>数据库
数据库技能评估了候选人的技能对管理关系数据库的知识和理解，包括使用SQL创建，查询和修改数据库表。衡量此技能很重要，因为它反映了候选人使用数据库系统，设计有效的数据库模式并执行数据操作任务的能力。
参考
参考编程中的参考从另一个位置访问和使用存储在一个位置中的数据或对象。在测试中测量了该技能，以评估候选人适当参考和利用数据或资源的能力，展示他们对程序之间不同部分之间建立联系和关系的理解。
运营商
编程中的操作员是对操作数执行特定操作的符号或关键字。测量测试中的这一技能很重要，因为它表明候选人使用不同的操作员执行各种计算，比较和逻辑操作的能力，突出了他们编写高效代码的能力。
数据库对象</ H4> <p>数据库对象是指组成数据库的组件，例如表，视图，索引和存储过程。评估这项技能对于招聘人员来说很重要，因为它反映了候选人对不同数据库对象的理解及其目的，以及它们有效地创建，修改和管理这些对象的能力。</p> <h4> url
URL（统一资源定位器）是特定Web资源的地址，例如网页或文件。评估测试中的这一技能至关重要，因为它衡量了候选人对如何使用URL的知识和理解，包括构建和解析URL，处理查询参数以及在网页或资源之间导航。
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 NPM在线测试 to be based on.
文件夹结构
JSON
查询
数据库
引用
操作员
数据库对象
URL
表

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What roles can I use the NPM Online Test for?

JavaScript开发人员
Nodejs开发人员

How is the NPM 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