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Rslint

    camelcase

    Unreleased

    Configuration

    rslint.config.ts
    import { defineConfig, js } from '@rslint/core';

export default defineConfig([
  js.configs.recommended,
  {
    rules: {
      'camelcase': 'error',
    },
  },
]);

    Rule Details

    This rule enforces camelcase naming by reporting identifiers with internal underscores. Leading and trailing underscores and all-uppercase constants are allowed.

    Examples of incorrect code for this rule:

    const favorite_color = "blue";
obj.favorite_color = "blue";

    Examples of correct code for this rule:

    const favoriteColor = "blue";
const FAVORITE_COLOR = "blue";
const _favoriteColor = "blue";
obj.favorite_color();

    Options

    • "properties": "always" (default) checks property declarations and writes; "never" permits underscored property names.
    • "ignoreDestructuring": true permits a destructured binding when it keeps the source property name, while later uses are still checked.
    • "ignoreImports": true permits a named import when its local and exported names are identical, while later uses are still checked.
    • "ignoreGlobals": true skips configured and comment-declared globals; unresolved names are still checked.
    • "allow" accepts exact names or JavaScript regular expression patterns.

    Examples of correct code with property checks disabled:

    { "camelcase": ["error", { "properties": "never" }] }
    const response = { response_code: 200 };
response.response_code = 201;

    Examples of correct code with destructured source names ignored:

    { "camelcase": ["error", { "ignoreDestructuring": true }] }
    const { response_code } = response;

    Examples of correct code with an allow pattern:

    { "camelcase": ["error", { "allow": ["^UNSAFE_"] }] }
    function UNSAFE_componentWillMount() {}

    Original Documentation