self-closing-comp.md

Prevent extra closing tags for components without children (self-closing-comp)

Components without children can be self-closed to avoid unnecessary extra closing tag.

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

Rule Details

The following patterns are considered warnings:

var HelloJohn = <Hello name="John"></Hello>;

The following patterns are not considered warnings:

var contentContainer = <div className="content"></div>;

var intentionalSpace = <div>{' '}</div>;

var HelloJohn = <Hello name="John" />;

var Profile = <Hello name="John"><img src="picture.png" /></Hello>;

var HelloSpace = <Hello>{' '}</Hello>;

Rule Options

The rule can take one argument to select types of tags, which should be self-closed when this is possible. By default custom components tags and html tags should be self-closed.

...
"self-closing-comp": ["error", {
  "component": true,
  "html": true
}]
...

component

When true, custom components tags should be self-closed.

The following patterns are considered warnings:

var HelloJohn = <Hello name="John"></Hello>;

The following patterns are not considered warnings:

var contentContainer = <div className="content"></div>;

var intentionalSpace = <div>{' '}</div>;

var HelloJohn = <Hello name="John" />;

var Profile = <Hello name="John"><img src="picture.png" /></Hello>;

html

When true, html components tags should be self-closed.

The following patterns are considered warnings:

var contentContainer = <div className="content"></div>;

The following patterns are not considered warnings:

var contentContainer = <div className="content" />;

var contentContainer = <div className="content"><div /></div>;

var intentionalSpace = <div>{' '}</div>;