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:
js
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:
js
const foo = 123;
export default foo;
export default function foo() {}
export default class MyClass {}
export default function foo() {}
export default foo(bar);
/* eslint import/no-anonymous-default-export: ['error', {"allowLiteral": true}] */
export default 123;
/* eslint import/no-anonymous-default-export: ['error, {"allowArray": true}] */
export default [];
/* eslint import/no-anonymous-default-export: ['error, {"allowArrowFunction": true}] */
export default () => {};
/* eslint import/no-anonymous-default-export: ['error, {"allowAnonymousClass": true}] */
export default class {}
/* eslint import/no-anonymous-default-export: ['error, {"allowAnonymousFunction": true}] */
export default function() {}
/* eslint import/no-anonymous-default-export: ['error, {"allowObject": true}] */
export default {};
/* eslint import/no-anonymous-default-export: ['error, {"allowNew": true}] */
export default new Foo();
/* eslint 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 in the CLI or using the config file, you can use:
bash
oxlint --deny import/no-anonymous-default-export --import-pluginjson
{
"plugins": ["import"],
"rules": {
"import/no-anonymous-default-export": "error"
}
}