import/no-mutable-exports Style

What it does

Forbids the use of mutable exports with var or let.

Why is this bad?

In general, we should always export constants

Examples

Examples of incorrect code for this rule:

export let count = 2;
export var count = 3;

let count = 4;
export { count };

Examples of correct code for this rule:

export const count = 1;
export function getCount() {}
export class Counter {}

Functions/Classes

Note that exported function/class declaration identifiers may be reassigned, but are not flagged by this rule at this time. They may be in the future.

How to use

To enable this rule in the CLI or using the config file, you can use:

CLI

oxlint --deny import/no-mutable-exports --import-plugin

Config (.oxlintrc.json)

{
  "plugins": ["import"],
  "rules": {
    "import/no-mutable-exports": "error"
  }
}

References

• Rule Source