jsx-fragments.md

Enforce shorthand or standard form for React fragments (react/jsx-fragments)

🔧 This rule is automatically fixable using the --fix flag on the command line.

In JSX, a React fragment is created either with <React.Fragment>...</React.Fragment>, or, using the shorthand syntax, <>...</>.

Rule Details

This rule allows you to enforce one way or the other.

Support for fragments was added in React v16.2, so the rule will warn on either of these forms if an older React version is specified in shared settings.

Rule Options

...
"react/jsx-fragments": [<enabled>, <mode>]
...

syntax mode

This is the default mode. It will enforce the shorthand syntax for React fragments, with one exception. Keys or attributes are not supported by the shorthand syntax, so the rule will not warn on standard-form fragments that use those.

Examples of incorrect code for this rule:

<React.Fragment><Foo /></React.Fragment>

Examples of correct code for this rule:

<><Foo /></>

<React.Fragment key="key"><Foo /></React.Fragment>

element mode

This mode enforces the standard form for React fragments.

Examples of incorrect code for this rule:

<><Foo /></>

Examples of correct code for this rule:

<React.Fragment><Foo /></React.Fragment>

<React.Fragment key="key"><Foo /></React.Fragment>