我正在建立自己的有用的库,这些库在项目之间使用。为此,我决定创建一个私有NPM软件包@name/package
。
当我尝试将其导入我的CRA
应用程序中时,就会出现问题。服务器正确编译(在CLI中),但是在访问该页面时,它给了我Unhandled Rejection (TypeError): Object(...) is not a function
错误。我使用babel使用以下配置进行编译。
Babel配置
{
presets: ["@babel/env", "@babel/react"]
}
Package.json
{
"main": "./dist/index.js",
"module": "./src/index.js",
"files": [
"src/**/*",
"dist/**/*"
],
}
src / index.js
export { default as mapObject} from "./mapObject";
src / mapObject.js
export default function mapObject(object, callback) {
return Object.keys(object || {}).map(key => callback(key, object[key]));
}
dist / index.js(由babel编译)
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "mapObject", {
enumerable: true,
get: function get() {
return _mapObject.default;
}
});
var _mapObject = _interopRequireDefault(require("./mapObject"));
dist / mapObject.js
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = mapObject;
function mapObject(object, callback) {
return Object.keys(object || {}).map(function (key) {
return callback(key, object[key]);
});
}
导入文件
// Causes error when loading in the browser
import { mapObject } from "@name/package";
import { mapObject } from "@name/package/src";
import { mapObject } from "@name/package/dist";
// Doesn't cause an error
import mapObject from "@name/package/dist/mapObject";
import mapObject from "@name/package/src/mapObject";
我检查了其他多个库,对我而言,构建/导入过程没有任何区别。
答案 0 :(得分:0)
所以上面显示的代码实际上是正确的,但是在测试时我搞砸了,因为没有复制新的src和dist文件夹...