prettier/tests/jsx/parens.js

a = [
  <path
    key='0'
    d='M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,'
  />,
  <path
    key='1'
    d='M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,M13.6,10.6l,4-2.8L9.5,'
  />,
];

<div {...((foo || foo === null) ? {foo} : null)} />