jsx-indent.md

Validate JSX indentation (react/jsx-indent)

This option validates a specific indentation style for JSX.

Fixable: This rule is automatically fixable using the --fix flag on the command line. Fixer will fix whitespace and tabs indentation.

Rule Details

This rule is aimed to enforce consistent indentation style. The default style is 4 spaces.

Examples of incorrect code for this rule:

// 2 spaces indentation
<App>
  <Hello />
</App>

// no indentation
<App>
<Hello />
</App>

// 1 tab indentation
<App>
  <Hello />
</App>

Rule Options

It takes an option as the second parameter which can be "tab" for tab-based indentation or a positive number for space indentations. To enable checking the indentation of attributes or add indentation to logical expressions, use the third parameter to turn on the checkAttributes (default is false) and indentLogicalExpressions (default is false) respectively.

...
"react/jsx-indent": [<enabled>, 'tab'|<number>, {checkAttributes: <boolean>, indentLogicalExpressions: <boolean>}]
...

Examples of incorrect code for this rule:

// 2 spaces indentation
// [2, 2]
<App>
    <Hello />
</App>

// tab indentation
// [2, 'tab']
<App>
  <Hello />
</App>

// [2, 2, {checkAttributes: true}]
<App render={
  <Hello render={
    (bar) => <div>hi</div>
}
  />
  }>
</App>

// [2, 2, {indentLogicalExpressions: true}]
<App>
  {condition && (
  <Hello />
  )}
</App>

Examples of correct code for this rule:

// 2 spaces indentation
// [2, 2]
<App>
  <Hello />
</App>

// tab indentation
// [2, 'tab']
<App>
  <Hello />
</App>

// no indentation
// [2, 0]
<App>
<Hello />
</App>

// [2, 2, {checkAttributes: false}]
<App render={
  <Hello render={
    (bar) => <div>hi</div>
}
  />
  }>
</App>

// [2, 2, {indentLogicalExpressions: true}]
<App>
  {condition && (
    <Hello />
  )}
</App>

When not to use

If you are not using JSX then you can disable this rule.