FAQ   React.js FAQ


Topic Replies Views Activity
About the React.js FAQ category
0 500 December 30, 2017
Can we access state properties using bracket notation?
q-a
2 6539 January 19, 2021
What is an HTML-like JSX element?
q-a
2 5751 May 2, 2020
How can we access the individual elements or values of a prop which is an array or object?
q-a
4 6483 April 8, 2021
Why sometimes import has {} and sometimes doesn't?
q-a
4 8170 November 14, 2020
Is using a variable to set an attribute better practice than using object properties to set attributes?
q-a
6 6965 October 11, 2020
What happens if I don't use this when referencing a method from inside a class?
q-a
10 5213 December 2, 2020
Is the ReactDOM render() method the same as the component render() method?
q-a
0 6231 January 3, 2019
When should I use logic inside of render vs logic inside of the class declaration?
q-a
3 6160 November 21, 2020
What does JSON.stringify do?
q-a
2 11678 April 30, 2021
Can I call multiple event handlers in response to a single event?
q-a
15 23353 December 2, 2020
What if the specified container already has contents when rendering to it?
q-a
5 5243 April 23, 2021
Can we pass the entire state object to the child component?
q-a
3 5730 October 17, 2020
Why can I use a ternary operator inside a JSX expression but not an if statement?
q-a
10 8059 April 16, 2021
Should we always set defaultProps for every prop value?
q-a
0 6097 January 29, 2019
Why don't I need a ReactDOM.render() for each component?
q-a
6 11036 November 22, 2020
Why do I get errors when I pass the method with () to the attribute?
q-a
5 3221 May 26, 2020
Can we return multiple elements in the render function?
q-a
8 8495 November 21, 2020
Are there any other HTML attributes that are reserved keywords in JavaScript that I wont be able to use in JSX?
q-a
6 9947 July 21, 2021
Do controlled and uncontrolled just mean stateless and stateful?
q-a
0 3309 February 28, 2019
Why don't we set the event listener attribute value to a function call?
q-a
5 8034 August 2, 2021
Can we pass multiple event handlers as props and choose a specific one to attach to a child component?
q-a
0 7586 February 13, 2019
Can I change a component's attribute values using a conditional statement in the render function?
q-a
8 4270 April 24, 2021
What is the full lifecycle and methods of a component?
q-a
0 1691 January 29, 2019
Can we only create one component instance at a time?
q-a
2 6147 May 2, 2020
Is there a way to work with the individual children of a component?
q-a
7 5843 July 26, 2021
How should component classes be named?
q-a
7 3746 June 9, 2021
Why would we want to use variables to set a component's attributes?
q-a
0 4264 March 23, 2019
Why would I use React.createElement() instead of JSX?
q-a
9 8809 November 21, 2020
Is it only possible to update a sibling component through a parent?
q-a
1 1165 June 18, 2021