jsx-first-prop-new-line

Enforce proper position of the first property in JSX.

Rule Details

This rule checks whether the first property of all JSX elements is correctly placed.

Options

There are the possible configurations:

• always: The first property should always be placed on a new line.
• never : The first property should never be placed on a new line, e.g. should always be on the same line as the Component opening tag.
• multiline: The first property should always be placed on a new line when the JSX tag takes up multiple lines.
• multiprop: The first property should never be placed on a new line unless there are multiple properties.
• multiline-multiprop: The first property should always be placed on a new line if the JSX tag takes up multiple lines and there are multiple properties. This is the default value.

always

Examples of incorrect code for this rule, when configured with "always":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "always"] */

<Hello 
personal={true}
 />;

<Hello 
personal={true}
    foo="bar"
/>;

incorrect

Examples of correct code for this rule, when configured with "always":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "always"] */

<Hello
    personal />;

<Hello
    personal
/>;

correct

never

Examples of incorrect code for this rule, when configured with "never":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "never"] */

<Hello
        
personal
 />;

<Hello
        
personal
/>;

incorrect

Examples of correct code for this rule, when configured with "never":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "never"] */

<Hello personal={true} />;

<Hello personal={true}
    foo="bar"
/>;

correct

multiline

Examples of incorrect code for this rule, when configured with "multiline":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "multiline"] */

<Hello 
personal
    prop />;

<Hello 
foo={{
}} />;

incorrect

Examples of correct code for this rule, when configured with "multiline":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "multiline"] */

<Hello personal={true} />;

<Hello
    personal={true}
    foo="bar"
/>;

correct

multiline-multiprop

Examples of incorrect code for this rule, when configured with "multiline-multiprop":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "multiline-multiprop"] */

<Hello 
foo={{
    }}
    bar />;

incorrect

Examples of correct code for this rule, when configured with "multiline-multiprop":

/* eslint @stylistic/jsx-first-prop-new-line: ["error", "multiline-multiprop"] */

<Hello foo={{
}} />;

<Hello
    foo={{
    }}
    bar
/>;

correct

When Not To Use It

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