Generate a multiple choice exam with questions that quiz a developers knowledge of React JS
What is React JS?
a. A server-side scripting language b. A database management system c. A JavaScript library for building user interfaces d. A programming language for building mobile apps Answer: c
What is the main advantage of using React JS?
a. It is faster than other JavaScript libraries b. It has a better syntax than other programming languages c. It can be used for both front-end and back-end development d. It is easier to learn than other programming languages Answer: a
What is the virtual DOM in React JS?
a. A simulated version of the real DOM used for rendering b. A database of all the components in a React application c. A JavaScript object that stores all the state variables d. A tool for debugging React applications Answer: a
What is JSX in React JS?
a. A server-side scripting language b. A JavaScript syntax extension for writing HTML-like code in JavaScript c. A database management system d. A programming language for building mobile apps Answer: b
What is a state in React JS?
a. A variable that is used to store data within a component b. A function that updates the DOM c. A programming paradigm used in React JS d. A tool for debugging React applications Answer: a
What is a prop in React JS?
a. A function that updates the DOM b. A variable that is used to pass data between components c. A programming paradigm used in React JS d. A tool for debugging React applicationsAnswer: b
What is a component in React JS? a. A function that updates the DOM b. A variable that is used to pass data between components c. A programming paradigm used in React JS d. A reusable piece of UI that can be composed of other components Answer: d
What is the difference between a functional component and a class component in React JS?
a. A functional component is written in ES6 syntax, while a class component is written in ES5 syntax b. A functional component uses hooks to manage state, while a class component uses the this keyword c. A functional component can only be used for simple UI elements, while a class component is used for more complex UI elements d. A functional component is stateless, while a class component can have state and lifecycle methods Answer: d
What is the purpose of the useEffect hook in React JS? a. To fetch data from an API b. To update the state of a component c. To manage the lifecycle of a component d. To handle user interactions in a component Answer: c
What is the purpose of the useContext hook in React JS? a. To update the state of a component b. To handle user interactions in a component c. To share data between components without having to pass props d. To manage the lifecycle of a component Answer: c
"Design a word problem that requires the use of addition, multiplication, and ratios to solve." is that a reasonable prompt?