Search test library by skills or roles
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About the test:

TypeScript测试使用基于方案的MCQ问题和代码追踪问题来评估候选人对类型,ES6支持,OOP(类,模块,接口)等打字稿概念的理解及其用异步/等待编写异步代码的能力。与打字稿一起,该测试还有MCQ问题可以评估JavaScript基本面和编码问题,以评估动手编码技能。

Covered skills:

  • JavaScript基本面
  • 打字稿基础知识(类型; ES6)
  • 通过继承重复对象
  • 封装类/对象
  • 使用WebPack使用打字稿
  • 了解DOM和Web脚本
  • 使用类创建对象
  • 使用不同的访问修饰符
  • 异步开发与异步/等待
  • 异常处理

9 reasons why
9 reasons why

Adaface 打字稿在线测试 is the most accurate way to shortlist Web开发人员s



Reason #1

Tests for on-the-job skills

The 打字稿在线测试 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:

  • 理解和使用基本的JavaScript语法和函数
  • 了解DOM和操纵网络元素的能力
  • 打字稿基本面,包括了解类型和ES6功能
  • 使用类创建对象
  • 理解和实施继承
  • 使用不同的访问修饰符的能力
  • 了解类和对象的封装知识
  • 与异步/等待的异步发展熟练
  • 与WebPack使用打字稿的经验
  • 有效处理异常和错误
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 打字稿在线测试 将是不可行的.

🧐 Question

Medium

Alias
OOPs
Solve
What does the following TypeScript code print?
 image
 image

Medium

Truthiness
Narrowing
Solve
We wrote the following TypeScript function to work as global print function. The function needs to handle string input, an array of strings as input or null as an input. In case of string and array of strings, it needs to print them to console. For null input, the code should not print anything.
 image
The function is throwing an error when it is called with null - globalConsole(null). This is happening because typeof null is ‘object’ in JavaScript. Here are two modifications of the code to handle this case:
 image
 image
Pick the correct statements:

A: In the case of null input, globalConsole1 won’t produce any compiler errors like globalConsole
B: In the case of null input, globalConsole2 won’t produce any compiler errors like globalConsole
C: globalConsole1 will differ from globalConsole for an empty string
D: globalConsole2 will differ from globalConsole for an empty string

Hard

Types
Solve
Consider the following TypeScript code: 
 image
Which of the following statements are correct:

A: The typescript compiler confirms that toUpperCase exists on the a instance.
B: The typescript compiler states that the toUpperCase function does not exist on the b instance.
C: The typescript compiler confirms that the toUpperCase function exists on the b instance.
D: RectangleType is an array where the type of a fixed number of elements is known.
E: Variables r, g, b are immutable.
F: r, g, b would compile to same type signature

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

Alias
OOPs

2 mins

TypeScript
Solve

Medium

Truthiness
Narrowing

3 mins

TypeScript
Solve

Hard

Types

2 mins

TypeScript
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
Alias
OOPs
TypeScript
Medium2 mins
Solve
Truthiness
Narrowing
TypeScript
Medium3 mins
Solve
Types
TypeScript
Hard2 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

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

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment 打字稿在线测试 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 打字稿在线测试 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.

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 打字稿在线测试

Why you should use 打字稿在线测试?

The 打字稿在线测试 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:

  • 了解JavaScript基本面
  • 使用DOM和Web脚本
  • 应用打字稿基础知识,包括ES6的类型和功能
  • 使用类创建对象
  • 通过继承重复对象
  • 应用不同的访问修饰符来控制类/对象行为
  • 封装更好的代码组织的类/对象
  • 使用异步/等待
  • 将Typescript与WebPack一起用于模块捆绑
  • 处理异常和错误

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 打字稿在线测试?

  • 了解DOM和Web脚本

    了解文档对象模型(DOM)和Web脚本涉及了解如何操纵HTML元素并使用JavaScript动态与Web页面进行交互。这对于开发交互式和响应迅速的Web应用程序至关重要。测试此技能有助于评估候选人与DOM合作并执行Web脚本任务的能力。

  • 打字稿基础知识(类型; es6)

    打字稿基础知识涵盖了重要概念,例如类型注释,诸如类型注释,类型推理以及ES6功能的使用。评估此技能可确保候选人对打字稿语法有牢固的了解,并可以利用其功能来编写类型安全和现代的JavaScript代码。

  • 使用类创建对象

    创建对象</h4> <p>使用类创建对象是一项基本技能,因为它允许代码组织和在打字稿中创建可重复使用的结构化对象。评估这项技能有助于确定候选人使用类来定义和实例化对象的能力,从而可以更好地可维护性和可扩展性。

  • 通过继承

    通过继承重复对象重复对象是一个关键方面打字稿中面向对象的编程。该技能涉及了解如何从现有类中得出新类并继承其属性和方法。测试此技能可确保候选人可以有效利用继承来实现代码并促进模块化设计。

  • 使用不同的访问修饰符

    使用不同的访问修饰符,例如公共,私人和受保护,允许控制班级成员的可见性和访问。评估这项技能有助于评估候选人实施封装并在打字稿代码中实施封装和强制进行适当的数据隐藏和抽象的能力。

  • 封装类/对象

    封装类/对象涉及捆绑数据的实践以及类中的方法,提供一定的封装并保护内部侵害外部干扰。此技能评估确保候选人可以在打字稿中有效地封装并创建良好的模块化代码。

  • 异步开发具有异步/等待/等待</egait

    异步开发,并涉及异步/等待代码的编写代码处理异步操作并以更可读和可维护的方式管理承诺。测试此技能有助于评估候选人使用异步/等待语法编写异步代码的能力,从而更好地处理API呼叫,文件读/写作等操作。

  • 使用WebPack使用Typescript的用法</p> <h4> H4> <p>使用WebPack使用TypeScript的用法是指将打字稿集成到基于WebPack的开发工作流中的能力。这包括设置打字稿配置,管理模块捆绑以及利用WebPack功能,例如代码分配和动态导入。评估此技能可以验证候选人在使用WebPack使用Typescript进行优化和有效开发的熟练程度。</p> <h4>例外处理

    例外处理是捕获和处理错误或在此期间发生的例外的实践执行程序。评估此技能有助于确定候选人优雅处理错误并在打字稿中实施适当的错误处理机制的能力,从而确保更强大且可靠的代码。

  • 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 打字稿在线测试 to be based on.

    变量
    功能
    对象
    数组
    有条件
    循环
    提升
    范围
    关闭
    原型
    ES6
    箭头功能
    破坏性
    传播语法
    休息参数
    模板文字
    课程
    遗产
    多态性
    封装
    访问修饰符
    接口
    模块
    承诺
    异步/等待
    打字稿编译器
    类型注释
    类型推理
    类型的后卫
    声明合并
    名称空间
    仿制药
    装饰者
    WebPack配置
    入口点
    装载机
    插件
    代码分裂
    树摇
    异常处理
    事件处理
    DOM操纵
    阿贾克斯
    Web API
    localstorage
    SessionStorage
    HTML5画布
    错误处理
    代码调试
    单位测试
    嘲笑
    GIT版本控制
    分支
    合并
    提交
    藏匿
    存储库克隆
    推和拉
    解决冲突

What roles can I use the 打字稿在线测试 for?

  • Web开发人员
  • 软件工程师
  • 完整的堆栈开发人员
  • 前端开发人员
  • 后端开发人员
  • UI开发人员
  • JavaScript开发人员
  • 打字稿开发人员
  • 角开发人员
  • 反应开发人员
  • 高级软件工程师(打字稿)

How is the 打字稿在线测试 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

  • 实施面向对象的编程原理
  • 调试JavaScript和打字稿代码
  • 优化代码性能
  • 实施JavaScript和打字稿代码的单元测试
  • 在JavaScript和Typescript中使用设计模式
  • 在JavaScript中利用功能编程概念
  • 在JavaScript和Typescript中使用数据结构和算法
  • 使用JavaScript和Typescript使用RESTFUL API
  • 在JavaScript和Typescript中集成外部库和框架
  • 将JavaScript和打字稿应用于生产环境

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

打字稿在线测试 常见问题解答

我可以在同一个测试中评估 JavaScript 和 TypeScript 吗?

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 JavaScript 测试,了解单独测试 JavaScript 时将包含哪些类型的问题。最终测试将包括评估 TypeScript、JavaScript 的 MCQ 问题和评估 JavaScript 的编码问题。

我可以在同一个测试中评估 React 和 TypeScript 吗?

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 React 测试,了解测试 React 技能时将包含哪些类型的问题。最终测试将包括评估 React、TypeScript、HTML/CSS 和编码问题的 MCQ 问题。

我可以在同一测试中使用 TypeScript 评估 VueJS 吗?

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 Vue JS 测试,了解测试 Vue 技能时会包含哪些类型的问题。最终测试将包括评估 Vue、TypeScript、HTML/CSS 和编码问题的 MCQ 问题。

我可以在同一个测试中使用 TypeScript 评估 Angular 吗?

是的。我们支持在同一次测试中测试多种技能。您可以查看我们的标准 Angular 测试,了解测试 Angular 技能时会包含哪些类型的问题。最终测试将包括评估 Angular、TypeScript、HTML/CSS 和编码问题的 MCQ 问题。

如何为后端 NodeJS TypeScript 开发人员定制测试?

该测试将包括基于场景的 MCQ 问题,以评估 Node JS、TypeScript、REST 技能和编码问题。您可以查看我们的标准NodeJS测试来了解我们如何设计NodeJS问题。

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?

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