Prueba en línea de reactjs

About the test:

La prueba React utiliza preguntas de MCQ basadas en escenarios para evaluar la comprensión del ciclo de vida de los componentes React, la capacidad de trabajar con JSX, eventos de usuario, estado react, componentes funcionales y ganchos para crear aplicaciones React dinámicas. La prueba tiene JavaScript MCQS para evaluar los fundamentos de ES6, DOM, Fetch, Promises y Async / Wait. La prueba incluye preguntas de codificación para evaluar las habilidades de programación de JavaScript prácticas.

Covered skills:

Construir contenido con JSX
Componentes basados en clases
Métodos de ciclo de vida
Hacer solicitudes de API con React
Uso de Refs para DOM Access
Navegación de componentes y rutas
Integrar reaccionar con las bibliotecas de gestión estatal
Uso del sistema de contexto con React

Comunicarse con accesorios
Estado reaccionado
Manejo de la entrada del usuario con formularios y eventos
Construyendo listas de registros
Comprender los ganchos en React
Implementar una aplicación React
Manejo de autenticación con React

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9 reasons why

Adaface Prueba en línea de reactjs is the most accurate way to shortlist Desarrollador de reactjss

Reason #1

Tests for on-the-job skills

The Prueba en línea de reactjs 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:

Construir contenido con JSX
Comunicarse con accesorios
Implementación de componentes basados en clases
Gestión del estado React
Trabajar con métodos de ciclo de vida react
Manejo de la entrada del usuario con formularios y eventos
Hacer solicitudes de API con React
Construyendo listas de registros
Acceder a DOM con referencias
Comprender los ganchos en React
Navegación de componentes y rutas
Implementar una aplicación React
Integrar reaccionar con las bibliotecas de gestión estatal
Manejo de autenticación con React
Uso del sistema de contexto con React

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

Estas son solo una pequeña muestra de nuestra biblioteca de más de 10,000 preguntas. Las preguntas reales sobre esto Prueba en línea react.js no se puede obtener.

🧐 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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Con Adaface, pudimos optimizar nuestro proceso de selección inicial en más de un 75 %, liberando un tiempo precioso tanto para los gerentes de contratación como para nuestro equipo de adquisición de talentos.

Brandon Lee, jefe de personas, Love, Bonito

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Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Prueba en línea react.js 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 Prueba en línea react.js 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 Prueba en línea de reactjs

Why you should use Prueba en línea de reactjs?

The Prueba en línea react.js 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:

Construir contenido con JSX
Comunicarse con accesorios
Componentes basados en clases
Estado reaccionado
Métodos de ciclo de vida
Manejo de la entrada del usuario con formularios y eventos
Hacer solicitudes de API con React
Construyendo listas de registros
Uso de Refs para DOM Access
Comprender los ganchos en 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 Prueba en línea de reactjs?

componentes basados en clases
Los componentes basados en clases son Una forma de definir y crear componentes reutilizables en React. Se implementan como clases de JavaScript que extienden la clase de componentes React Base. Esta habilidad debe medirse en la prueba para evaluar la comprensión de un candidato de la sintaxis de componentes basados en clases y su capacidad para crear y administrar el estado de componentes utilizando métodos de clase.
React State
Estado de reacción se refiere al sistema de gestión estatal proporcionado por React. State permite que los componentes mantengan y administren sus propios datos, que se pueden actualizar y representar automáticamente en respuesta a los cambios. Esta habilidad debe medirse en la prueba para evaluar la comprensión de un candidato de la gestión del estado en React y su capacidad para crear componentes de UI dinámicos e interactivos que respondan a las acciones del usuario y los cambios de datos.
Métodos de ciclo de vida
Los métodos de ciclo de vida en React son métodos especiales que se llaman automáticamente en puntos específicos durante el ciclo de vida de un componente, como cuando se monta o actualiza. Proporcionan ganchos para realizar tareas como obtener datos, suscribirse a eventos o actualizar el estado del componente. Esta habilidad debe medirse en la prueba para evaluar la familiaridad de un candidato con los métodos del ciclo de vida en React y su capacidad para utilizarlos de manera efectiva para controlar y administrar el comportamiento de los componentes.
Manejo de la entrada del usuario con formularios y eventos </H4 > <p> Manejo de la entrada del usuario con formularios y eventos implica capturar y procesar la entrada del usuario en React. Esta habilidad debe medirse en la prueba para evaluar la capacidad de un candidato para crear componentes de formulario controlados, manejar los envíos de formularios y responder a eventos de usuario, como clics, presiones de teclas y movimientos del mouse. </p> <h4> Hacer solicitudes de API con React
Hacer solicitudes de API con React implica obtener datos de API externas e integrarlos en componentes React. Esta habilidad debe medirse en la prueba para evaluar el conocimiento de un candidato sobre el uso de herramientas como la API de Fetch o Axios para realizar solicitudes asíncronas, manejar respuestas y actualizar el estado de componente con los datos recuperados.
Listas de registros de registros
Listas de registros de registros en React se refiere a la representación de listas dinámicas de elementos basados en datos. Esta habilidad debe medirse en la prueba para evaluar la capacidad de un candidato para mapear a través de una serie de datos, generar componentes de la lista dinámica y renderizarlos de manera eficiente en React.
usando refs para DOM Access </h4> < P> El uso de Refs para el acceso DOM permite el acceso directo a los elementos DOM subyacentes en los componentes React. Las referencias proporcionan una forma de interactuar con el DOM de manera imperativa, como obtener el valor de un campo de entrada o activar un evento de enfoque. Esta habilidad debe medirse en la prueba para evaluar la comprensión de un candidato de las referencias y su capacidad para usarlas de manera efectiva para la manipulación y acceso DOM. </p> <h4> Entendiendo ganchos en React
Entendiendo ganchos en React Se trata de utilizar la función de ganchos introducida en React para escribir componentes funcionales con características de estado y ciclo de vida. Los ganchos proporcionan una forma de utilizar características React, como métodos de estado de estado y de ciclo de vida en componentes funcionales, haciéndolos más fáciles de escribir, comprender y probar. Esta habilidad debe medirse en la prueba para evaluar la familiaridad de un candidato con los ganchos y su capacidad para aprovecharlos para construir componentes funcionales y con estado en React.
componente y navegación de ruta
y componente y La navegación de ruta en React implica la gestión de la navegación y el enrutamiento dentro de una aplicación React. Esta habilidad debe medirse en la prueba para evaluar la comprensión de un candidato de React Router u otras bibliotecas de enrutamiento, y su capacidad para navegar entre diferentes componentes o rutas en función de las interacciones del usuario o la lógica programática.
Aplicación React.
Implementar una aplicación React significa poner una aplicación React a disposición de los usuarios implementándola en una plataforma o servidor de alojamiento. Esta habilidad debe medirse en la prueba para evaluar el conocimiento de un candidato sobre el proceso de implementación para las aplicaciones React, incluidas la optimización de compilación, la configuración del entorno y las estrategias de implementación.
Integrando React con bibliotecas de gestión estatales </h4> <</h4> < P> La integración de las bibliotecas de gestión de estado implica el uso de bibliotecas como Redux o MOBX para administrar el estado global de una aplicación React. Esta habilidad debe medirse en la prueba para evaluar la familiaridad de un candidato con los conceptos de gestión estatal y su capacidad para integrar y utilizar bibliotecas de gestión estatal en aplicaciones React para administrar flujos de datos complejos y estado compartido. </p> <h4> Manejo de la autenticación con React.
El manejo de la autenticación con React implica la implementación de la autenticación y la autorización del usuario en una aplicación React. Esta habilidad debe medirse en la prueba para evaluar la capacidad de un candidato para implementar flujos de autenticación, manejar sesiones de usuario, proteger las rutas y administrar de forma segura las credenciales de los usuarios y los tokens de autenticación dentro de una aplicación React.
utilizando el sistema de contexto con React
Uso del sistema de contexto con React permite compartir datos o estado entre componentes sin pasar accesorios a través de cada nivel del árbol de componentes. El contexto proporciona una forma de acceder a un valor o estado desde cualquier componente dentro del árbol de contexto. Esta habilidad debe medirse en la prueba para evaluar la comprensión de un candidato de la API de contexto en React y su capacidad para utilizarlo para compartir datos y administrar el estado de toda la aplicación de una manera más eficiente y escalable.
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 Prueba en línea react.js to be based on.
Sintaxis jsx
Expresiones JSX
Representación de componentes
Accesorios de componentes
Composición de componentes
Estado componente
Actualizaciones de estado y accesorios
Métodos de ciclo de vida: componenteDidMount
Métodos de ciclo de vida: componenteDidupdate
Métodos de ciclo de vida: componente de suministro
Manejo de eventos
Manejo de forma
Solicitudes de API con Fetch
Solicitudes de API con axios
Manipulación de datos
Listas de representación
Acceso a DOM con referencias
Comprender USestate
Comprender el uso del efecto
Enrutador reaccionado
React Router: Parámetros de ruta
REACT ROUTER: redirige
Opciones de implementación
Integrando con Redux
Integrándose con mobx
Autenticacion de usuario
Sistema de contexto: proveedor y consumidor
Sistema de contexto: useContext
Sistema de contexto: usereducer
Sistema de contexto: ganchos personalizados
Sistema de contexto: contextos múltiples

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What roles can I use the Prueba en línea de reactjs for?

Desarrollador de reactjs
Desarrollador de software (React)
Desarrollador web de pila completa
Ingeniero delantero (React)
Ingeniero de software (ReactJS)
Desarrollador web
Desarrollador senior de reactjs
Ingeniero JavaScript (React)
Ingeniero web senior

How is the Prueba en línea de reactjs 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

Navegación de componentes y rutas
Implementar una aplicación React
Integrar reaccionar con las bibliotecas de gestión estatal
Manejo de autenticación con React
Uso del sistema de contexto con React
Prueba de componentes React
Optimización del rendimiento en React
Renderización del lado del servidor con React
Seguridad frontend en React
Creación de aplicaciones web progresivas con React

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

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Los gerentes de contratación sintieron que a través de las preguntas técnicas que hicieron durante las entrevistas del panel, pudieron decir qué candidatos tenían mejores puntajes y diferenciarse de aquellos que no obtuvieron tan buenos puntajes. Ellos son altamente satisfecho con la calidad de los candidatos preseleccionados con la selección de Adaface.

85%

Reducción en el tiempo de detección

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Prueba en línea de reactjs Preguntas frecuentes

¿Puedo evaluar React y TypeScript en la misma prueba?

Sí. Una vez que se mude a un plan pagado, puede solicitar una evaluación personalizada. Personalizamos la evaluación de acuerdo con la descripción de su trabajo y apoyamos la evaluación de múltiples habilidades en la misma evaluación.

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.

¿Puedo combinar múltiples habilidades en una evaluación personalizada?

Si, absolutamente. Las evaluaciones personalizadas se configuran en función de la descripción de su trabajo e incluirán preguntas sobre todas las habilidades imprescindibles que especifique.

¿Tiene alguna característica anti-trato o procuración en su lugar?

Tenemos las siguientes características anti-trate en su lugar:

Preguntas no postradas
Procuración de IP
Procedor web
Procedores de cámara web
Detección de plagio
navegador seguro

Lea más sobre las funciones de procuración.

¿Cómo interpreto los puntajes de las pruebas?

Lo principal a tener en cuenta es que una evaluación es una herramienta de eliminación, no una herramienta de selección. Una evaluación de habilidades está optimizada para ayudarlo a eliminar a los candidatos que no están técnicamente calificados para el rol, no está optimizado para ayudarlo a encontrar el mejor candidato para el papel. Por lo tanto, la forma ideal de usar una evaluación es decidir un puntaje umbral (generalmente del 55%, lo ayudamos a comparar) e invitar a todos los candidatos que obtienen un puntaje por encima del umbral para las próximas rondas de la entrevista.

¿Para qué nivel de experiencia puedo usar esta prueba?

Cada evaluación de AdaFace está personalizada para su descripción de trabajo/ persona candidata ideal (nuestros expertos en la materia elegirán las preguntas correctas para su evaluación de nuestra biblioteca de más de 10000 preguntas). Esta evaluación se puede personalizar para cualquier nivel de experiencia.

¿Cada candidato tiene las mismas preguntas?

Sí, te hace mucho más fácil comparar los candidatos. Las opciones para las preguntas de MCQ y el orden de las preguntas son aleatorizados. Tenemos características anti-trato/procuración en su lugar. En nuestro plan empresarial, también tenemos la opción de crear múltiples versiones de la misma evaluación con cuestiones de niveles de dificultad similares.