Using CSS properties as false values within React applications

Can you provide guidance on using conditional styles with conditional operators?

What would be the ideal code example? Is it possible to use non-CSS values?

margin: isOpen ? '10px' : undefined

margin: isOpen ? '10px' : 'initial'

https://i.stack.imgur.com/qnnVR.png

Would it be acceptable to use 'undefined' and 'null' as CSS properties in this way?

margin: isOpen ?? '10px'

Here's another method of passing every false value:

margin: isOpen && '10px'

Alternatively, you could try this approach:

margin: isOpen ? '10px' : ''

Just for context, we intend to use these techniques in the style property in React or in styled-components.

javascriptcssreactjsstyled-componentscss-in-js

Answer №1

My personal preference leans towards creating a separate class for the isOpen state and then conditionally applying the className, rather than resorting to inline styles. For this purpose, I recommend utilizing the classnames package for efficiently applying the desired class.

Nevertheless, if opting for an alternative method is more suitable for your needs, consider the following approach that I find simpler and easier to comprehend:

 <p style={{ color: "dodgerblue", ...(isOpen ? { margin: "10px" } : {}) }}>
    ...
 </p>

To explore a practical demonstration of conditional styling, check out this Sandbox Example

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