Some developers prefer to sort props names alphabetically to be able to find necessary props easier at the later time. Others feel that it adds complexity and becomes burden to maintain.
Fixable: This rule is automatically fixable using the --fix
flag on the command line.
This rule checks all JSX components and verifies that all props are sorted alphabetically. A spread attribute resets the verification. The default configuration of the rule is case-sensitive.
The following patterns are considered warnings:
<Hello lastName="Smith" firstName="John" />;
The following patterns are considered okay and do not cause warnings:
<Hello firstName="John" lastName="Smith" />;
<Hello tel={5555555} {...this.props} firstName="John" lastName="Smith" />;
...
"react/jsx-sort-props": [<enabled>, {
"callbacksLast": <boolean>,
"shorthandFirst": <boolean>,
"shorthandLast": <boolean>,
"ignoreCase": <boolean>,
"noSortAlphabetically": <boolean>,
"reservedFirst": <boolean>|<array<string>>,
}]
...
When true
the rule ignores the case-sensitivity of the props order.
The following patterns are considered okay and do not cause warnings:
<Hello name="John" Number="2" />;
When true
, callbacks must be listed after all other props, even if shorthandLast
is set :
<Hello tel={5555555} onClick={this._handleClick} />
When true
, short hand props must be listed before all other props, but still respecting the alphabetical order:
<Hello active validate name="John" tel={5555555} />
When true
, short hand props must be listed after all other props (unless callbacksLast
is set), but still respecting the alphabetical order:
<Hello name="John" tel={5555555} active validate />
When true
, alphabetical order is not enforced:
<Hello tel={5555555} name="John" />
This can be a boolean or an array option.
When reservedFirst
is defined, React reserved props (children
, dangerouslySetInnerHTML
- only for DOM components, key
, and ref
) must be listed before all other props, but still respecting the alphabetical order:
<Hello key={0} ref="John" name="John">
<div dangerouslySetInnerHTML={{__html: 'ESLint Plugin React!'}} ref="dangerDiv" />
</Hello>
If given as an array, the array's values will override the default list of reserved props. Note: the values in the array may only be a subset of React reserved props.
With reservedFirst: [2, ["key"]]
, the following will not warn:
<Hello key={'uuid'} name="John" ref="ref" />
This rule is a formatting preference and not following it won't negatively affect the quality of your code. If alphabetizing props isn't a part of your coding standards, then you can leave this rule off.