Reactjs Teste online

About the test:

O teste do React usa perguntas MCQ baseadas em cenário para avaliar o entendimento do ciclo de vida do componente React, a capacidade de trabalhar com JSX, eventos do usuário, estado de reação, componentes funcionais e ganchos para criar aplicativos de reação dinâmica. O teste tem MCQs JavaScript para avaliar os fundamentos ES6, DOM, buscar, promessas e assíncronas / aguardar. O teste inclui perguntas de codificação para avaliar as habilidades práticas de programação JavaScript.

Covered skills:

Construindo conteúdo com JSX
Componentes baseados em classe
Métodos do ciclo de vida
Fazendo solicitações de API com React
Usando refs para acesso DOM
Componente e navegação de rota
Integração do React às bibliotecas de gerenciamento de estados
Usando o sistema de contexto com reação

Comunicação com adereços
Estado de reação
Manuseando a entrada do usuário com formulários e eventos
Listas de construção de registros
Compreendendo ganchos no React
Implantando um aplicativo React
Manuseio de autenticação com reação

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9 reasons why

Adaface Reactjs Teste online is the most accurate way to shortlist Reactjs Developers

Reason #1

Tests for on-the-job skills

The Reactjs Teste online 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:

Construindo conteúdo com JSX
Comunicação com adereços
Implementando componentes baseados em classes
Gerenciando o estado do React
Trabalhando com métodos de ciclo de vida do React
Manuseando a entrada do usuário com formulários e eventos
Fazendo solicitações de API com React
Listas de construção de registros
Acessando DOM com refs
Compreendendo ganchos no React
Componente e navegação de rota
Implantando um aplicativo React
Integração do React às bibliotecas de gerenciamento de estados
Manuseio de autenticação com reação
Usando o sistema de contexto com reação

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

Estes são apenas uma pequena amostra da nossa biblioteca de mais de 10.000 perguntas. As perguntas reais sobre isso React.js Teste online será não-googleable.

🧐 Question
Hard Context re-renders React Context API Conditional Rendering Component Lifecycle State	Try practice test
Review the following React code: 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	Try practice test
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: 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	Try practice test
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
Hard State Handling with Custom Hooks Custom Hooks Context API Event Handling	Try practice test
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: 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.
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 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
	Hard Context re-renders React Context API Conditional Rendering Component Lifecycle State	3 mins React	Try practice test
Review the following React code: 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	3 mins React	Try practice test
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: 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	3 mins React	Try practice test
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
	Hard State Handling with Custom Hooks Custom Hooks Context API Event Handling	3 mins React	Try practice test
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: 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.
	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 Registration Queue Logic Queues	30 mins Coding	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	30 mins Coding	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	💪 Difficulty	⌛ Time
	Context re-renders React Context API Conditional Rendering Component Lifecycle State	React	Hard	3 mins	Try practice test
Review the following React code: 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
	Hooks with Conditional Rendering Hooks Conditional Rendering Event Handling	React	Medium	3 mins	Try practice test
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: 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.
	Rhyme Reducer Reducer functions Immutable update patterns Lazy initialization	React	Medium	3 mins	Try practice test
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
	State Handling with Custom Hooks Custom Hooks Context API Event Handling	React	Hard	3 mins	Try practice test
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: 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.
	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?
	Registration Queue Logic Queues	Coding	Easy	30 mins	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
	Visitors Count Strings Logic	Coding	Medium	30 mins	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.

Reason #4

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Com o Adaface, conseguimos otimizar nosso processo de seleção inicial em mais de 75%, liberando um tempo precioso tanto para os gerentes de contratação quanto para nossa equipe de aquisição de talentos!

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment React.js Teste online 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 React.js Teste online 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

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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

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About the Reactjs Teste online

Why you should use Reactjs Teste online?

The React.js Teste online 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:

Construindo conteúdo com JSX
Comunicação com adereços
Componentes baseados em classe
Estado de reação
Métodos do ciclo de vida
Manuseando a entrada do usuário com formulários e eventos
Fazendo solicitações de API com React
Listas de construção de registros
Usando refs para acesso DOM
Compreendendo ganchos no React

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 Reactjs Teste online?

componentes baseados em classe
Componentes baseados em classe são Uma maneira de definir e criar componentes reutilizáveis no React. Eles são implementados como classes JavaScript que estendem a classe de componentes de reaciação básica. Essa habilidade deve ser medida no teste para avaliar a compreensão de um candidato da sintaxe do componente baseado em classe e sua capacidade de criar e gerenciar o estado do componente usando métodos de classe. refere -se ao sistema de gerenciamento de estado fornecido pela React. O estado permite que os componentes mantenham e gerenciem seus próprios dados, que podem ser atualizados e renderizados automaticamente em resposta a alterações. Essa habilidade deve ser medida no teste para avaliar o entendimento de um candidato sobre o gerenciamento do estado no React e sua capacidade de criar componentes de interface do usuário dinâmico e interativo que respondem às ações do usuário e alterações de dados.
Métodos de ciclo de vida </h4> Os métodos <p> ciclo de vida no React são métodos especiais que são chamados automaticamente em pontos específicos durante o ciclo de vida de um componente, como quando ele é montado ou atualizado. Eles fornecem ganchos para executar tarefas como buscar dados, assinar eventos ou atualizar o estado do componente. Essa habilidade deve ser medida no teste para avaliar a familiaridade de um candidato com os métodos do ciclo de vida no React e sua capacidade de utilizá -los efetivamente para controlar e gerenciar o comportamento do componente. > <p> Lidar com a entrada do usuário com formulários e eventos envolve capturar e processar a entrada do usuário no React. Essa habilidade deve ser medida no teste para avaliar a capacidade de um candidato de criar componentes de formulários controlados, manipular envios de formulários e responder a eventos do usuário, como cliques, pressões de teclas e movimentos do mouse. </p> <h4> Fazendo solicitações de API com React
Fazer solicitações de API com reação envolve buscar dados de APIs externas e integrá -los aos componentes do React. Essa habilidade deve ser medida no teste para avaliar o conhecimento de um candidato sobre o uso de ferramentas como a API busca ou axios para fazer solicitações assíncronas, lidar com respostas e atualizar o estado do componente com os dados recuperados.
Listas de criação de registros
Construindo listas de registros no React refere -se à renderização de listas dinâmicas de itens com base nos dados. Essa habilidade deve ser medida no teste para avaliar a capacidade de um candidato de mapear sobre uma variedade de dados, gerar componentes da lista dinâmica e renderizá -los com eficiência no React. P> Usando refs para acesso DOM permite o acesso direto aos elementos DOM subjacentes nos componentes do React. Os refs fornecem uma maneira de interagir com o DOM imperativamente, como obter o valor de um campo de entrada ou desencadear um evento de foco. Essa habilidade deve ser medida no teste para avaliar o entendimento de um candidato sobre os refs e sua capacidade de usá -los efetivamente para manipulação e acesso a DOM. é sobre a utilização do recurso Hooks introduzido no React para gravar componentes funcionais com recursos de estado e ciclo de vida. Os ganchos fornecem uma maneira de usar recursos do React, como métodos de estado e ciclo de vida em componentes funcionais, tornando -os mais fáceis de escrever, entender e testar. Essa habilidade deve ser medida no teste para avaliar a familiaridade de um candidato com os ganchos e sua capacidade de alavancá -los para criar componentes funcionais e com estado no reagir. A navegação na rota no React envolve o gerenciamento da navegação e do roteamento em um aplicativo React. Essa habilidade deve ser medida no teste para avaliar o entendimento de um candidato sobre o roteador React ou outras bibliotecas de roteamento, e sua capacidade de navegar entre diferentes componentes ou rotas com base nas interações do usuário ou na lógica programática.
implantar um aplicativo React
implantar um aplicativo React significa disponibilizar um aplicativo React aos usuários, implantando -o em uma plataforma ou servidor de hospedagem. Essa habilidade deve ser medida no teste para avaliar o conhecimento de um candidato sobre o processo de implantação para aplicações de reação, incluindo otimização de construção, configuração de meio ambiente e estratégias de implantação. P> A integração do React às bibliotecas de gerenciamento de estados envolve o uso de bibliotecas como Redux ou Mobx para gerenciar o estado global de um aplicativo React. Essa habilidade deve ser medida no teste para avaliar a familiaridade de um candidato com os conceitos de gerenciamento de estados e sua capacidade de integrar e utilizar bibliotecas de gerenciamento de estados em aplicativos de reação para gerenciar fluxos de dados complexos e estado compartilhado. </h4> <p> O manuseio da autenticação com o React envolve a implementação da autenticação e autorização do usuário em um aplicativo REACT. Essa habilidade deve ser medida no teste para avaliar a capacidade de um candidato de implementar fluxos de autenticação, lidar com sessões de usuário, proteger rotas e gerenciar com segurança credenciais de usuário e tokens de autenticação em um aplicativo React.
Usando o sistema de contexto com O React
Usando o sistema de contexto com o React permite compartilhar dados ou estado entre componentes sem passar adereços por todos os níveis da árvore de componentes. O contexto fornece uma maneira de acessar um valor ou estado de qualquer componente dentro da árvore de contexto. Essa habilidade deve ser medida no teste para avaliar a compreensão de um candidato sobre a API de contexto no React e sua capacidade de utilizá-lo para compartilhar dados e gerenciar o estado em todo o aplicativo de uma maneira mais eficiente e escalável.
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 React.js Teste online to be based on.
Sintaxe JSX
Expressões JSX
Renderização de componentes
Adeços de componentes
Composição do componente
Estado de componente
Atualizações de estado e adereços
Métodos de ciclo de vida: componentDidmount
Métodos do ciclo de vida: componentDidupdate
Métodos de ciclo de vida: componentwillunmount
Manipulação de eventos
Manuseio de formulários
Pedidos de API com busca
Pedidos de API com axios
Manipulação de dados
Listas de renderização
DOM Acesso com refs
Entendendo o uso de uso
Entendendo o uso de uso
ROUTER DE REACTER
Reacto roteador: parâmetros de rota
Router de reação: redireciona
Opções de implantação
Integração ao Redux
Integração com mobx
Autenticação de usuário
Sistema de contexto: provedor e consumidor
Sistema de contexto: UseContext
Sistema de contexto: UserEduces
Sistema de contexto: ganchos personalizados
Sistema de contexto: vários contextos

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What roles can I use the Reactjs Teste online for?

Reactjs Developer
Desenvolvedor de software (React)
Desenvolvedor da Web de pilha completa
Engenheiro Front -End (React)
Engenheiro de Software (ReactJS)
Desenvolvedor da Web
Desenvolvedor Sênior Reactjs
Javascript Engineer (React)
Engenheiro sênior da web

How is the Reactjs Teste online 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

Componente e navegação de rota
Implantando um aplicativo React
Integração do React às bibliotecas de gerenciamento de estados
Manuseio de autenticação com reação
Usando o sistema de contexto com reação
Teste de componentes reagentes
Otimização de desempenho no React
Renderização do lado do servidor com reação
Segurança de front -end em React
Construindo aplicativos da Web progressivos com reação

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

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Os gerentes de contratação sentiram que, por meio das perguntas técnicas feitas durante as entrevistas do painel, foram capazes de dizer quais candidatos tiveram melhores pontuações e diferenciaram aqueles que não tiveram pontuações tão boas. Eles são altamente satisfeito com a qualidade dos candidatos selecionados na triagem Adaface.

85%

Redução no tempo de triagem

Veja o estudo de caso completo

Reactjs Teste online Perguntas frequentes

Posso avaliar o React e o TypeScript no mesmo teste?

Sim. Depois de mudar para um plano pago, você pode solicitar uma avaliação personalizada. Personalizamos a avaliação de acordo com a descrição do seu trabalho e apoiamos a avaliação de várias habilidades na mesma avaliação.

Can I evaluate React, JavaScript and HTML/ CSS in the same test?

Yes. The test already comes with MCQs to evaluate JavaScript fundamentals and coding questions to evaluate hands-on JavaScript programming skills. We can customize the test to include MCQ questions to evaluate HTML/ CSS skills.

Posso combinar várias habilidades em uma avaliação personalizada?

Sim absolutamente. As avaliações personalizadas são configuradas com base na descrição do seu trabalho e incluirão perguntas sobre todas as habilidades obrigatórias que você especificar.

Você tem algum recurso anti-trapaça ou procurador?

Temos os seguintes recursos anti-trapaça:

Perguntas não-goleadas
IP Proctoring
Web Proctoring
Proctoring da webcam
Detecção de plágio
navegador seguro

Leia mais sobre os Recursos de Proctoring.

Como interpreto as pontuações dos testes?

O principal a ter em mente é que uma avaliação é uma ferramenta de eliminação, não uma ferramenta de seleção. Uma avaliação de habilidades é otimizada para ajudá -lo a eliminar os candidatos que não são tecnicamente qualificados para o papel, não é otimizado para ajudá -lo a encontrar o melhor candidato para o papel. Portanto, a maneira ideal de usar uma avaliação é decidir uma pontuação limite (normalmente 55%, ajudamos você a comparar) e convidar todos os candidatos que pontuam acima do limiar para as próximas rodadas da entrevista.

Para que nível de experiência posso usar este teste?

Cada avaliação do Adaface é personalizada para a descrição do seu trabalho/ persona do candidato ideal (nossos especialistas no assunto escolherão as perguntas certas para sua avaliação de nossa biblioteca de mais de 10000 perguntas). Esta avaliação pode ser personalizada para qualquer nível de experiência.

Todo candidato recebe as mesmas perguntas?

Sim, facilita muito a comparação de candidatos. As opções para perguntas do MCQ e a ordem das perguntas são randomizadas. Recursos anti-traking/proctoring no local. Em nosso plano corporativo, também temos a opção de criar várias versões da mesma avaliação com questões de níveis de dificuldade semelhantes.