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About the test:

JavaScript、HTML/CSS&React Testは、シナリオベースのMCQを使用して、JavaScriptプログラミング言語、HTML/CSSマークアップ、およびReactライブラリの習熟度に関する候補者を評価します。このテストでは、DOM操作、イベント処理、コンポーネントライフサイクル、国家管理、小道具とレンダリング、CSSスタイリングなどのトピックに関する候補者の理解を評価します。候補者は、これらのテクノロジーを使用して実際の問題を解決し、レスポンシブでインタラクティブなWebアプリケーションを開発する能力について評価されます。

Covered skills:

  • JavaScript Basics
  • JSおっと
  • 非同期node.jsおよび約束
  • 反応コンポーネントライフサイクル
  • CSSボックスモデル
  • レスポンシブCSS
  • JS ES6
  • APIの処理
  • JSXを使用したコンポーネントの構築
  • 反応フックと機能コンポーネント
  • フレックスボックスとグリッドのレイアウト
  • JavaScriptプログラミング

9 reasons why
9 reasons why

Adaface JavaScript, HTML/CSS & React Test is the most accurate way to shortlist フルスタック開発者s



Reason #1

Tests for on-the-job skills

The JavaScript, HTML/CSS & React 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:

  • 例外とエラーを効率的に処理する能力
  • ES6の構文と概念の習熟度
  • JavaScriptのオブジェクト指向プログラミング原則の理解
  • APIでの作業と非同期操作の処理に関する知識
  • JSXでコンポーネントを構築した経験
  • Reactコンポーネントライフサイクルに精通しています
  • Reactフックと機能成分を使用する習熟度
  • CSSボックスモデルとそのア​​プリケーションの理解
  • 応答性の高いCSSデザインの作成に習熟
  • 強力なJavaScriptプログラミングスキル
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

これらは、10,000以上の質問のライブラリからのわずかなサンプルです。これに関する実際の質問 JavaScript、HTML/CSS&Reactテスト グーグルできません.

🧐 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

Easy

Background Properties
Solve
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:
 image

Easy

Colorful sentences
Solve
Our intern is writing a colorful blog post, and has written the following code. What colors will the sentences be?
 image
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
Solve
In the following HTML, what will be the color of link with class "mark"
 image

Medium

Let's Hack
CSS Property
Solve
Consider the following HTML and CSS:
 image
 image
Which additional CSS rule(s) will render the following image? Choose ALL that apply.
 image
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;
}

Hard

Context re-renders
React Context API
Conditional Rendering
Component Lifecycle State
Solve
Review the following React code:
 image
Pick the correct statements:

A: The code renders 10 INDIAN RUPEE
B: The code renders 10 SINGAPORE DOLLAR
C: The code does not render anything and throws an error since JavaScript objects are not valid as React children
D: When the currency portion is clicked, the parent component is re-rendered
E: When the currency portion is clicked, parent component will skip the re-render because shouldComponentUpdate returns false
F: Parent component can be converted to a functional component with memoization (useMemo or memo) to avoid the re-render

Medium

Hooks with Conditional Rendering
Hooks
Conditional Rendering
Event Handling
Solve
Consider a React functional component that utilizes various hooks and conditional rendering. The component is designed to fetch and display a list of items from an API, with the ability to filter the list based on user input. Here's the pseudo-code structure:
 image
In this component, which of the following is a potential issue or inefficiency?
A: The component will re-render excessively due to the `setFilter` call.
B: The `useEffect` hook will run on every render, causing performance issues.
C: The `fetchItems` function may cause a memory leak if the component unmounts during the fetch.
D: The `useMemo` hook for `filteredItems` is unnecessary and can be removed without impact.
E: The component will fail to display items when the filter is cleared.
F: There are no significant issues; the component is implemented optimally.

Medium

Rhyme Reducer
Reducer functions
Immutable update patterns
Lazy initialization
Solve
Which of the following React code snippets
- triggers the reducer ‘rhymeReducer’ to update the ‘song’ value to ‘Jack and Jill’
- renders the updated ‘song’ value
- does not produce any errors/warnings
 image
 image

Hard

State Handling with Custom Hooks
Custom Hooks
Context API
Event Handling
Solve
Consider a React application where a custom hook `useComplexState` is defined to manage a complex state object. The application also uses the Context API to pass down the state and dispatch function. Below is the pseudo-code for the custom hook and a component using it:
 image
Given this setup, which of the following statements best describes the potential issue or challenge with `MyComponent`?
A: The component will not re-render when the global state changes.
B: The `fetchData` function will cause an infinite loop of re-renders.
C: The component will lose its state when the global state updates.
D: There will be a memory leak due to improper cleanup in `useEffect`.
E: The `dispatch` function from `useComplexState` will conflict with the global dispatch.
F: There is no issue; the component is implemented correctly.

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

Easy

Background Properties

2 mins

HTML/CSS
Solve

Easy

Colorful sentences

2 mins

HTML/CSS
Solve

Easy

Links

2 mins

HTML/CSS
Solve

Medium

Let's Hack
CSS Property

3 mins

HTML/CSS
Solve

Hard

Context re-renders
React Context API
Conditional Rendering
Component Lifecycle State

3 mins

React
Solve

Medium

Hooks with Conditional Rendering
Hooks
Conditional Rendering
Event Handling

3 mins

React
Solve

Medium

Rhyme Reducer
Reducer functions
Immutable update patterns
Lazy initialization

3 mins

React
Solve

Hard

State Handling with Custom Hooks
Custom Hooks
Context API
Event Handling

3 mins

React
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
Background Properties
HTML/CSS
Easy2 mins
Solve
Colorful sentences
HTML/CSS
Easy2 mins
Solve
Links
HTML/CSS
Easy2 mins
Solve
Let's Hack
CSS Property
HTML/CSS
Medium3 mins
Solve
Context re-renders
React Context API
Conditional Rendering
Component Lifecycle State
React
Hard3 mins
Solve
Hooks with Conditional Rendering
Hooks
Conditional Rendering
Event Handling
React
Medium3 mins
Solve
Rhyme Reducer
Reducer functions
Immutable update patterns
Lazy initialization
React
Medium3 mins
Solve
State Handling with Custom Hooks
Custom Hooks
Context API
Event Handling
React
Hard3 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

Adaface を使用することで、最初の選考プロセスを 75% 以上最適化することができ、採用担当マネージャーと人材獲得チームの両方にとって貴重な時間を同様に解放することができました。


Brandon Lee, 人々の責任者, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment JavaScript、HTML/CSS&Reactテスト 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、HTML/CSS&Reactテスト 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

サンプルスコアカードを表示します
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, HTML/CSS & React Assessment Test

Why you should use Pre-employment JavaScript, HTML/CSS & React Online Test?

The JavaScript、HTML/CSS&Reactテスト 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:

  • JavaScriptの構文と基礎の理解
  • ES6の機能と使用に関する知識
  • オブジェクト指向のJavaScriptコードを記述する機能
  • APIの処理とHTTPコールの作成の経験
  • 非同期node.jsおよび約束を扱う習熟度
  • 反応中のJSXを使用した再利用可能なコンポーネントを構築します
  • Reactコンポーネントライフサイクルを理解する
  • Reactフックと機能コンポーネントを使用する専門知識
  • CSSボックスモデルの強力な理解
  • FlexBoxとグリッドを使用して柔軟なレイアウトを作成する機能

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, HTML/CSS & React Online Test?

  • 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、HTML/CSS&Reactテスト to be based on.

    変数
    データ型
    算術操作
    条件付きステートメント
    ループ
    機能
    配列
    オブジェクト
    エラー処理
    語彙範囲
    閉鎖
    巻き上げ
    プロトタイプ
    クラス
    継承
    ES6モジュール
    矢印機能
    破壊
    テンプレートリテラル
    スプレッドオペレーター
    休憩パラメーター
    オブジェクトを約束します
    async/await
    ajax
    APIを取得します
    JSON
    DOM操作
    イベント処理
    ブラウザストレージ
    反応コンポーネント
    JSX
    小道具
    ライフサイクル方法
    反応フック
    コンテキストAPI
    反応のスタイリング
    CSSセレクター
    ボックスモデル
    FlexBox
    グリッドレイアウト
    メディアクエリ
    レスポンシブデザイン
    デバッグ
    単体テスト
    コード最適化
    アルゴリズム設計
    データ構造
    エラー処理
    コードレビュー

What roles can I use the JavaScript, HTML/CSS & React Online Test for?

  • フルスタック開発者
  • JavaScript開発者
  • React開発者
  • フロントエンドエンジニア

How is the JavaScript, HTML/CSS & React 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

  • CSSでレスポンシブデザインを作成する経験
  • JavaScriptプログラミングの習熟度
  • JavaScriptフレームワークとライブラリに関する高度な知識
  • WebpackやBabelなどのフロントエンドビルドツールの経験
  • Webパフォーマンスを最適化し、レンダリングを最適化する機能
  • ReduxやMobxなどの州管理ライブラリの知識
  • Jestや酵素などのフレームワークのテストの経験
  • サードパーティのAPIおよびサービスと統合する能力
  • Gitなどのバージョン制御システムの理解
  • 複雑な問題のデバッグとトラブルシューティングの経験
  • 強力な問題解決スキルと要件を分析する能力

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

Singapore government logo

採用担当者は、パネル面接中に尋ねる専門的な質問を通じて、どの候補者がより良いスコアを持っているかを判断し、スコアが低い候補者と区別できると感じました。彼らです 非常に満足 Adaface のスクリーニングで最終候補者リストに選ばれた候補者の質を重視します。


85%
スクリーニング時間の短縮

JavaScript, HTML/CSS & React Hiring Test よくある質問

複数のスキルを1つのカスタム評価に組み合わせることはできますか?

そのとおり。カスタム評価は、職務内容に基づいて設定され、指定したすべての必須スキルに関する質問が含まれます。

アンチチートまたは監督の機能はありますか?

次のアンチチート機能があります。

  • グーグル不可能な質問
  • IP監督
  • Webの提案
  • ウェブカメラの監督
  • 盗作の検出
  • 安全なブラウザ

[プロクチャリング機能](https://www.adaface.com/proctoring)の詳細をご覧ください。

テストスコアを解釈するにはどうすればよいですか?

留意すべき主なことは、評価が選択ツールではなく排除ツールであることです。スキル評価が最適化され、技術的にその役割の資格がない候補者を排除するのに役立ちます。これは、役割の最良の候補者を見つけるのに役立つために最適化されていません。したがって、評価を使用する理想的な方法は、しきい値スコア(通常は55%、ベンチマークを支援します)を決定し、インタビューの次のラウンドのしきい値を超えてスコアを上回るすべての候補者を招待することです。

このテストを使用できますか?

各ADAFACE評価は、職務記述書/理想的な候補者のペルソナにカスタマイズされます(当社の主題の専門家は、10000以上の質問のライブラリからあなたの評価に適切な質問を選択します)。この評価は、あらゆる経験レベルでカスタマイズできます。

すべての候補者は同じ質問を受け取りますか?

私は候補者です。練習テストを試すことはできますか?

いいえ。残念ながら、現時点では練習テストをサポートしていません。ただし、[サンプルの質問](https://www.adaface.com/questions)を使用するには、練習できます。

このテストを使用するコストはいくらですか?

無料トライアルを受けることはできますか?

私はちょうど有料プランに移りました。カスタム評価をリクエストするにはどうすればよいですか?

customers across world
Join 1200+ companies in 75+ countries.
今日、最も候補者のフレンドリーなスキル評価ツールをお試しください。
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