#block-spacing

#Configuration

import { defineConfig, stylisticPlugin } from '@rslint/core';

export default defineConfig([
  stylisticPlugin.configs.recommended,
  {
    rules: {
      '@stylistic/block-spacing': 'error',
    },
  },
]);

Disallow or enforce spaces inside of blocks after opening block and before closing block.

#Rule Details

This rule enforces consistent spacing inside an open block token and the next token on the same line. This rule also enforces consistent spacing inside a close block token and previous token on the same line.

When the opening or closing brace and its neighboring token are on different lines, the rule does not fire — multi-line blocks are always allowed regardless of the option.

The rule applies to every { ... } block:

• function / arrow / method / getter / setter / constructor bodies
• if / else / for / while / do-while / try / catch / finally bodies
• switch case blocks
• class static blocks

#Options

This rule has a string option:

• "always" (default) requires one or more spaces or newlines inside braces.
• "never" disallows spaces inside braces.

#always

Examples of incorrect code for this rule with the default "always" option:

function foo() {return true;}
if (foo) { bar = 0;}
function baz() {let i = 0;
    return i;
}
class C {
    static {this.bar = 0;}
}

Examples of correct code for this rule with the default "always" option:

function foo() { return true; }
if (foo) { bar = 0; }
class C {
    static { this.bar = 0; }
}

#never

Examples of incorrect code for this rule with the "never" option:

{ "@stylistic/block-spacing": ["error", "never"] }

function foo() { return true; }
if (foo) { bar = 0;}
class C {
    static { this.bar = 0; }
}

Examples of correct code for this rule with the "never" option:

{ "@stylistic/block-spacing": ["error", "never"] }

function foo() {return true;}
if (foo) {bar = 0;}
class C {
    static {this.bar = 0;}
}

With "never", a { immediately followed by a // line comment is intentionally exempt — the closing } is still checked normally.

#Original Documentation

• @stylistic/block-spacing