D3.JS Online Test

About the test:

D3.JS在线测试使用基于方案的多项选择问题来评估候选人与D3.J基本面，数据绑定和操纵，量表和轴，SVG和画布图形，事件处理，过渡，过渡和动画以及的知识和技能，以及将D3.J与其他Web技术集成。还评估了候选人的编写有效和可重复使用的代码，设计和实施复杂的可视化以及故障排除和调试常见问题的能力。

Covered skills:

数据操纵和绑定
创建可视化
交互式可视化
处理事件
映射和预测

选择和修改元素
缩放和轴
过渡
布局和层次结构
定制和样式

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9 reasons why

Adaface D3.JS Test is the most accurate way to shortlist D3.JS开发人员s

Reason #1

Tests for on-the-job skills

The D3.JS 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:

操纵和绑定数据以有效可视化的能力
在D3可视化中选择和修改元素的能力
熟练使用D3.js库创建可视化的能力
了解缩放和轴以进行准确的视觉表示
用用户友好功能创建交互式可视化的技巧
了解使用过渡来增强d3.js的视觉效果的知识
处理事件的熟练度以动态和响应式可视化
熟悉组织视觉元素的布局和层次结构
理解地理可视化的映射和预测
能够自定义和样式可视化以与要求保持一致

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 D3.JS测试将是不可行的.

🧐 Question
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?
Easy Background Properties	Try practice test
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:
Easy Colorful sentences	Try practice test
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be? 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	Try practice test
In the following HTML, what will be the color of link with class "mark"
Medium Let's Hack CSS Property	Try practice test
Consider the following HTML and CSS: Which additional CSS rule(s) will render the following image? Choose ALL that apply. 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; }

	🧐 Question	🔧 Skill
	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?
	Easy Background Properties	2 mins HTML/CSS	Try practice test
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:
	Easy Colorful sentences	2 mins HTML/CSS	Try practice test
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be? 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	2 mins HTML/CSS	Try practice test
In the following HTML, what will be the color of link with class "mark"
	Medium Let's Hack CSS Property	3 mins HTML/CSS	Try practice test
Consider the following HTML and CSS: Which additional CSS rule(s) will render the following image? Choose ALL that apply. 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; }

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	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?
	Background Properties	HTML/CSS	Easy	2 mins	Try practice test
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:
	Colorful sentences	HTML/CSS	Easy	2 mins	Try practice test
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be? 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.
	Links	HTML/CSS	Easy	2 mins	Try practice test
In the following HTML, what will be the color of link with class "mark"
	Let's Hack CSS Property	HTML/CSS	Medium	3 mins	Try practice test
Consider the following HTML and CSS: Which additional CSS rule(s) will render the following image? Choose ALL that apply. 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; }

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 D3.JS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 D3.JS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 D3.JS Assessment Test

Why you should use Pre-employment D3.JS Online Test?

The D3.JS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:

数据操纵和绑定
选择和修改元素
创建可视化
缩放和轴
交互式可视化
过渡
处理事件
布局和层次结构
映射和预测
定制和样式

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 D3.JS Online Test?

数据操纵和绑定
此技能涉及使用D3.J.在网页上操纵和绑定数据与元素的绑定。它允许有效地处理数据，启用动态更新和与可视化的无缝集成。
选择和修改元素
此技能着重于使用D3.JS选择和修改DOM中的元素。它允许精确定位特定元素，并可以更改其属性，样式和内容。
创建可视化
此技能涵盖了创建交互式和视觉上吸引数据可视化的能力D3.js。它涉及了解如何以各种形式表示数据，例如图表，图，地图等。
缩放和轴
此技能涉及缩放数据值以适合于视觉表示并添加轴以提供用于解释可视化信息的参考点。它确保可视化准确地反映了基本数据。
交互式可视化
该技能着重于创建交互式数据可视化，使用户可以探索和与显示的信息进行交互。它涉及合并工具提示，悬停效果和可点击元素等交互作用。
过渡
这种技能涉及在可视化的不同状态之间创建平滑而动画的过渡，例如当数据时已更新或过滤。它通过提供视觉提示和以视觉吸引力的方式传达变化来增强用户体验。
处理事件
此技能涉及捕获和处理各种用户事件，例如鼠标点击，键盘，输入和触摸手势，以触发可视化中的特定动作或更新。它可以实现用户驱动的交互并增强可视化的总体可用性。
布局和层次结构
此技能涉及利用D3.J中的预定义布局和层次结构来安排和结构视觉元素在可视化中。它有助于创建复杂数据的有组织的和美观的表示。
映射和预测
此技能着重于将数据映射到地理或空间表示形式，并利用投影将数据转换为不同的不同坐标系。它可以创建交互式图和空间可视化。
自定义和样式
此技能涉及使用D3.JS。自定义可视化的外观和样式。它包括修改颜色，字体，尺寸和其他视觉方面，以与所需的设计和美学保持一致。
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 D3.JS测试 to be based on.
数据绑定
数据操纵
输入，更新，退出
加入
选择
DOM操纵
属性修改
应用样式
创建SVG元素
绘画形状
文字和标签
添加工具提示
秤
轴
tick
传奇
缩放和平移
刷牙和链接
互动
事件处理
过渡
持续时间和延迟
轻松
中断过渡
嵌套过渡
布局
力布局
树布局
集群布局
派布局
包装布局
Sankey图布局
和弦图布局
树状图布局
层次结构
Treemaps
朝阳
网络
Geojson
地图预测
托普森
地理可视化
graticules
热图
定制
造型
主题自定义
配色方案
响应式设计
可访问性
标签定位
工具提示自定义

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What roles can I use the D3.JS Online Test for?

D3.JS开发人员
D3.JS专家
JavaScript开发人员

How is the D3.JS 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