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Question 1
What is the primary way to handle form inputs in React?
Using state to store input values
Directly manipulating DOM elements
Using class components only
Using global variables
Question 2
Which React hook is commonly used to handle form input values in functional components?
useState
useEffect
useReducer
useCallback
Question 3
Which method is used to update a form input value in React?
setState()
forceUpdate()
updateState()
render()
Question 4
What is the purpose of the onChange event in React forms?
To submit the form
To update the state with the current input value
To initialize the form
To clear the input value
Question 5
Which of the following is the correct way to bind a value to an input field in React?
<input value="name" />
<input defaultValue={name} />
<input value={name} onChange={handleChange} />
<input onChange={handleChange} />
Question 6
Is this an example of two-way binding in React?
Yes, it is two-way binding
No, it is one-way binding
No, it is not binding
No, setInputValue is incorrect
Question 7
What type of form component is this, and how does the value of the input field behave?
Uncontrolled, value managed by DOM
Controlled, value managed by React state
Uncontrolled, no state
Controlled, value not changeable
Question 8
Is this the correct way to validate an email field in React?
Yes, it's a correct validation function
No, the regular expression is incorrect
No, the function should return an error
No, it should use isValidEmail()
Question 9
What will happen when the handleSubmit function is called in the following code?
An error message "Invalid email" will be displayed when the email is invalid.
The email will be automatically corrected to a valid format.
The error state will be cleared on each submit.
The validateEmail function will be called without any effect.
Question 10
What will happen when the user clicks the button in the following code?
The count will increment by 1 each time the button is clicked.
The count will remain at 0 because the state isn't updating correctly.
The code will throw an error due to a missing dependency in useState()
The count will decrement by 1 each time the button is clicked.
There are 10 questions to complete.
