js-interview-questions | A collection of interview question answers | AWS library
kandi X-RAY | js-interview-questions Summary
kandi X-RAY | js-interview-questions Summary
A collection of interview question answers written in JavaScript
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Top functions reviewed by kandi - BETA
- Finds the median of A and B .
- Calculates the fibacci recursively .
- Get the kth element of head .
- Divides two numbers .
- Extracts all the occurrences of the given text
- Sorting two arrays .
- Opens fibonacci fibonacci results
- Find the median of an item in an array .
- Check text .
- Returns an array containing all the names of an array
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QUESTION
This is super bugging me - this is a question from TestDome React and I am stuck - could anyone please give me a hand? Thanks in advance! (this is the link: https://www.testdome.com/d/react-js-interview-questions/304) This is the question:
This application should allow the user to update their username by inputting a custom value and clicking the button.
The Username component is finished and should not be changed, but the App component is missing parts. Finish the App component so that the Username component displays the inputted text when the button is clicked.
The App component should use the React.useRef Hook to pass the input to the Username component for the input element and for the Username component.
For example, if the user inputs a new username of "John Doe" and clicks the button, the div element with id root should look like this:
...ANSWER
Answered 2020-Oct-27 at 07:04update the App component to be like that
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