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About the React.js FAQ category
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0
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959
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December 30, 2017
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Why can I use a ternary operator inside a JSX expression but not an if statement?
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13
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16653
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April 20, 2024
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How can we access the individual elements or values of a prop which is an array or object?
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5
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12882
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September 29, 2021
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Is using a variable to set an attribute better practice than using object properties to set attributes?
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7
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11728
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March 14, 2023
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Can we access state properties using bracket notation?
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2
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10004
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January 19, 2021
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What is an HTML-like JSX element?
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2
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9754
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May 2, 2020
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What does JSON.stringify do?
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6
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23420
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September 5, 2023
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Why sometimes import has {} and sometimes doesn't?
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4
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13022
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November 14, 2020
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What happens if I don't use this when referencing a method from inside a class?
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13
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8028
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October 22, 2022
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When should I use logic inside of render vs logic inside of the class declaration?
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3
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11211
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November 21, 2020
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Is the ReactDOM render() method the same as the component render() method?
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0
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10620
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January 3, 2019
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Are there any other HTML attributes that are reserved keywords in JavaScript that I wont be able to use in JSX?
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8
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18984
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May 25, 2024
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Why don't we set the event listener attribute value to a function call?
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13
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14364
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January 3, 2024
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Can I inject other programming languages besides JavaScript into JSX?
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12
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16948
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September 22, 2023
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Can I call multiple event handlers in response to a single event?
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19
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36373
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March 17, 2023
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Why don't I need a ReactDOM.render() for each component?
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7
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18788
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March 16, 2022
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Can we return multiple elements in the render function?
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10
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20436
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February 10, 2022
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When should I use an if statement, a ternary operator, or the && operator?
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1
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11731
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June 30, 2024
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Can I use .forEach() to create a list of JSX elements?
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6
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68204
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December 11, 2023
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Why do I get errors when I pass the method with () to the attribute?
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6
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4569
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May 7, 2022
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What if the specified container already has contents when rendering to it?
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5
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7975
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April 23, 2021
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Why would we want to use variables to set a component's attributes?
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0
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7023
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March 23, 2019
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When should I assign a variable to a JavaScript expression that I want to use in a JSX expression?
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0
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10407
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February 17, 2019
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Should we always set defaultProps for every prop value?
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0
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10819
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January 29, 2019
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Do controlled and uncontrolled just mean stateless and stateful?
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2
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6803
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September 21, 2023
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Can we pass multiple event handlers as props and choose a specific one to attach to a child component?
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2
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12937
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July 17, 2023
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How should component classes be named?
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8
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6629
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April 7, 2023
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Can I use self-closing tag syntax for any HTML elements I use in JSX?
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7
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10866
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February 17, 2023
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Can we pass the entire state object to the child component?
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4
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9769
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January 30, 2022
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Why would I use React.createElement() instead of JSX?
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10
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17809
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November 29, 2021
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