解决从index.ts发布到NPM的导出问题？

Question

I have this package with an index.ts file.

The corresponding index.d.ts file that is installed under node_modules/@fireflysemantics/slice looks like this:

export { EStore } from './EStore';
export { Slice } from './Slice';
export { OStore } from './OStore';
export * from './types';

The corresponding index.js looks like this:

"use strict";
function __export(m) {
    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
}
Object.defineProperty(exports, "__esModule", { value: true });
var EStore_1 = require("./EStore");
exports.EStore = EStore_1.EStore;
var Slice_1 = require("./Slice");
exports.Slice = Slice_1.Slice;
var OStore_1 = require("./OStore");
exports.OStore = OStore_1.OStore;
__export(require("./types"));
//# sourceMappingURL=index.js.map

When I try to import the OStore using Stackblitz it will not resolve as a root import. For example this work:

import {OStore} from '@fireflysemantics/slice/OStore';

But this does not:

import {OStore} from '@fireflysemantics/slice/';

Here's a stackblitz link in case that's helpful:

https://stackblitz.com/edit/typescript-vj1vpa

The stackblitz error is:

Can't find module: @fireflysemantics/slice/index.ts (@6.4.2) Check your import statements & ensure you're importing the correct module names.

Should index.ts be copied to the distribution folder before installing to NPM?

Answer 1

When you import a folder like you are doing with:

import {OStore} from '@fireflysemantics/slice/';

It will try to import the index.ts file in that folder. Hence, the error if its not a module or it does not exist.