import/no-anonymous-default-export Style
What it does
Reports if a module's default export is unnamed. This includes several types of unnamed data types; literals, object expressions, arrays, anonymous functions, arrow functions, and anonymous class declarations.
Why is this bad?
Ensuring that default exports are named helps improve the grepability of the codebase by encouraging the re-use of the same identifier for the module's default export at its declaration site and at its import sites.
Examples
Examples of incorrect code for this rule:
export default [];
export default () => {};
export default class {};
export default function() {};
export default foo(bar);
export default 123;
export default {};
export default new Foo();
export default `foo`;
export default /^123/;Examples of correct code for this rule:
const foo = 123;
export default foo;
export default function foo() {};
export default class MyClass {};
export default function foo() {};
export default foo(bar);
/* import/no-anonymous-default-export: ["error", { "allowLiteral": true }] */
export default 123;
/* import/no-anonymous-default-export: ["error", { "allowArray": true }] */
export default []
/* import/no-anonymous-default-export: ["error", { "allowArrowFunction": true }] */
export default () => {};
/* import/no-anonymous-default-export: ["error", { "allowAnonymousClass": true }] */
export default class {};
/* import/no-anonymous-default-export: ["error", { "allowAnonymousFunction": true }] */
export default function() {};
/* import/no-anonymous-default-export: ["error", { "allowObject": true }] */
export default {};
/* import/no-anonymous-default-export: ["error", { "allowNew": true }] */
export default new Foo();
/* import/no-anonymous-default-export: ["error", { "allowCallExpression": true }] */
export default foo(bar);By default, all types of anonymous default exports are forbidden, but any types can be selectively allowed by toggling them on in the options.
Configuration
This rule accepts a configuration object with the following properties:
allowAnonymousClass
type: boolean
default: false
Allow anonymous class as default export.
allowAnonymousFunction
type: boolean
default: false
Allow anonymous function as default export.
allowArray
type: boolean
default: false
Allow anonymous array as default export.
allowArrowFunction
type: boolean
default: false
Allow anonymous arrow function as default export.
allowCallExpression
type: boolean
default: true
Allow anonymous call expression as default export.
allowLiteral
type: boolean
default: false
Allow anonymous literal as default export.
allowNew
type: boolean
default: false
Allow anonymous new expression as default export.
allowObject
type: boolean
default: false
Allow anonymous object as default export.
How to use
To enable this rule using the config file or in the CLI, you can use:
{
"plugins": ["import"],
"rules": {
"import/no-anonymous-default-export": "error"
}
}import { defineConfig } from "oxlint";
export default defineConfig({
plugins: ["import"],
rules: {
"import/no-anonymous-default-export": "error",
},
});oxlint --deny import/no-anonymous-default-export --import-pluginVersion
This rule was added in v0.15.14.