React - className (ie html class attribute)


className is the class attribute in React


  • clsx building conditional className

Instead of writing:

return (
    className={`MuiButton-root ${disabled ? 'Mui-disabled' : ''} ${selected ? 'Mui-selected' : ''}`}

You write

import clsx from 'clsx';

return (
    className={clsx('MuiButton-root', {
      'Mui-disabled': disabled,
      'Mui-selected': selected,

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