CommonJS import error

[dacevedo12]

Related to microsoft/TypeScript#45813

using the import syntax with mixpanel and typescript 4.4+ fails

import { disable, init } from "mixpanel-browser";

init("my_mixpanel_token");
disable();
       ^

TypeError: Cannot read property '_flags' of undefined

using the default import works well though, but it is discouraged by linting rules such as https://github.com/import-js/eslint-plugin-import/blob/v2.25.2/docs/rules/no-named-as-default-member.md

import mixpanel from "mixpanel-browser";

mixpanel.init("my_mixpanel_token");
mixpanel.disable();

[tdumitrescu]

Yeah, the export of the commonjs module is a Mixpanel library instance. It won't work to call individual methods without any binding to their instance.

[dacevedo12]

Yeah, the export of the commonjs module is a Mixpanel library instance. It won't work to call individual methods without any binding to their instance.

So would you suggest using the default import instead?
Also worthy of a contribution to definitelyTyped so other TS devs don't make this mistake

[tdumitrescu]

Yes, the default export should work for you. It's the only one we document. I think it might be a pretty simple update for the lib to export a named version as well so you could do

import {mixpanel} from 'mixpanel-browser';