import/no-named-as-default-member

After import config from "./config", config.load is a property of the default export. It isn't the module's named export load. If the default export doesn't have that property, you get undefined. If it does, a named import says the same thing more directly and lets bundlers drop the exports you don't use.

The rule reads the imported module and reports config.load and const { load } = config if the module has a named export load.

Configure

Off by default. To turn it on:

[lint.rules]
"import/no-named-as-default-member" = "error" # or "warn"

Examples

Reported:

export function load(path) {
  return JSON.parse(read(path));
}

export default { port: 3000 };

import config from "./config";

config.load("./app.json");
const { load } = config;

Not reported:

export function load(path) {
  return JSON.parse(read(path));
}

export default { port: 3000 };

import config, { load } from "./config";

load("./app.json");
listen(config.port);