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import route dynamically on vite

I try to migrate vue project to vite from vue-cli.
In vue-cli, I used the function to import route.
function loadView(view: string) {
return () => import(/* webpackChunkName: "[index]" */ `#/pages/${view}.vue`);
}
And I changed function to this in vite.
function loadView(view: string) {
return () => import(`#/src/pages/${view}.vue`);
}
And when I run project, it works well but this warning is called.
The above dynamic import cannot be analyzed by Vite.
But I set resolve.alias: [{ find: "#", replacement: "/src" }], in vite.config.js so I don't know why this warning is called.
How can I remove this warning? And How can I set chunkname in vite?

Import all files in a directory at once [duplicate]

With ES6, I can import several exports from a file like this:
import {ThingA, ThingB, ThingC} from 'lib/things';
However, I like the organization of having one module per file. I end up with imports like this:
import ThingA from 'lib/things/ThingA';
import ThingB from 'lib/things/ThingB';
import ThingC from 'lib/things/ThingC';
I would love to be able to do this:
import {ThingA, ThingB, ThingC} from 'lib/things/*';
or something similar, with the understood convention that each file contains one default export, and each module is named the same as its file.
Is this possible?

I don't think this is possible, but afaik the resolution of module names is up to module loaders so there might a loader implementation that does support this.
Until then, you could use an intermediate "module file" at lib/things/index.js that just contains
export * from 'ThingA';
export * from 'ThingB';
export * from 'ThingC';
and it would allow you to do
import {ThingA, ThingB, ThingC} from 'lib/things';

Just a variation on the theme already provided in the answer, but how about this:
In a Thing,
export default function ThingA () {}
In things/index.js,
export {default as ThingA} from './ThingA'
export {default as ThingB} from './ThingB'
export {default as ThingC} from './ThingC'
Then to consume all the things elsewhere,
import * as things from './things'
things.ThingA()
Or to consume just some of things,
import {ThingA,ThingB} from './things'

The current answers suggest a workaround but it's bugged me why this doesn't exist, so I've created a babel plugin which does this.
Install it using:
npm i --save-dev babel-plugin-wildcard
then add it to your .babelrc with:
{
"plugins": ["wildcard"]
}
see the repo for detailed install info
This allows you to do this:
import * as Things from './lib/things';
// Do whatever you want with these :D
Things.ThingA;
Things.ThingB;
Things.ThingC;
again, the repo contains further information on what exactly it does, but doing it this way avoids creating index.js files and also happens at compile-time to avoid doing readdirs at runtime.
Also with a newer version you can do exactly like your example:
import { ThingsA, ThingsB, ThingsC } from './lib/things/*';
works the same as the above.

You now can use async import():
import fs = require('fs');
and then:
fs.readdir('./someDir', (err, files) => {
files.forEach(file => {
const module = import('./' + file).then(m =>
m.callSomeMethod();
);
// or const module = await import('file')
});
});

Great gugly muglys! This was harder than it needed to be.
Export one flat default
This is a great opportunity to use spread (... in { ...Matters, ...Contacts } below:
// imports/collections/Matters.js
export default { // default export
hello: 'World',
something: 'important',
};
// imports/collections/Contacts.js
export default { // default export
hello: 'Moon',
email: 'hello#example.com',
};
// imports/collections/index.js
import Matters from './Matters'; // import default export as var 'Matters'
import Contacts from './Contacts';
export default { // default export
...Matters, // spread Matters, overwriting previous properties
...Contacts, // spread Contacts, overwriting previosu properties
};
// imports/test.js
import collections from './collections'; // import default export as 'collections'
console.log(collections);
Then, to run babel compiled code from the command line (from project root /):
$ npm install --save-dev #babel/core #babel/cli #babel/preset-env #babel/node
(trimmed)
$ npx babel-node --presets #babel/preset-env imports/test.js
{ hello: 'Moon',
something: 'important',
email: 'hello#example.com' }
Export one tree-like default
If you'd prefer to not overwrite properties, change:
// imports/collections/index.js
import Matters from './Matters'; // import default as 'Matters'
import Contacts from './Contacts';
export default { // export default
Matters,
Contacts,
};
And the output will be:
$ npx babel-node --presets #babel/preset-env imports/test.js
{ Matters: { hello: 'World', something: 'important' },
Contacts: { hello: 'Moon', email: 'hello#example.com' } }
Export multiple named exports w/ no default
If you're dedicated to DRY, the syntax on the imports changes as well:
// imports/collections/index.js
// export default as named export 'Matters'
export { default as Matters } from './Matters';
export { default as Contacts } from './Contacts';
This creates 2 named exports w/ no default export. Then change:
// imports/test.js
import { Matters, Contacts } from './collections';
console.log(Matters, Contacts);
And the output:
$ npx babel-node --presets #babel/preset-env imports/test.js
{ hello: 'World', something: 'important' } { hello: 'Moon', email: 'hello#example.com' }
Import all named exports
// imports/collections/index.js
// export default as named export 'Matters'
export { default as Matters } from './Matters';
export { default as Contacts } from './Contacts';
// imports/test.js
// Import all named exports as 'collections'
import * as collections from './collections';
console.log(collections); // interesting output
console.log(collections.Matters, collections.Contacts);
Notice the destructuring import { Matters, Contacts } from './collections'; in the previous example.
$ npx babel-node --presets #babel/preset-env imports/test.js
{ Matters: [Getter], Contacts: [Getter] }
{ hello: 'World', something: 'important' } { hello: 'Moon', email: 'hello#example.com' }
In practice
Given these source files:
/myLib/thingA.js
/myLib/thingB.js
/myLib/thingC.js
Creating a /myLib/index.js to bundle up all the files defeats the purpose of import/export. It would be easier to make everything global in the first place, than to make everything global via import/export via index.js "wrapper files".
If you want a particular file, import thingA from './myLib/thingA'; in your own projects.
Creating a "wrapper file" with exports for the module only makes sense if you're packaging for npm or on a multi-year multi-team project.
Made it this far? See the docs for more details.
Also, yay for Stackoverflow finally supporting three `s as code fence markup.

Similar to the accepted answer but it allows you to scale without the need of adding a new module to the index file each time you create one:
./modules/moduleA.js
export const example = 'example';
export const anotherExample = 'anotherExample';
./modules/index.js
// require all modules on the path and with the pattern defined
const req = require.context('./', true, /.js$/);
const modules = req.keys().map(req);
// export all modules
module.exports = modules;
./example.js
import { example, anotherExample } from './modules'

If you are using webpack. This imports files automatically and exports as api namespace.
So no need to update on every file addition.
import camelCase from "lodash-es";
const requireModule = require.context("./", false, /\.js$/); //
const api = {};
requireModule.keys().forEach(fileName => {
if (fileName === "./index.js") return;
const moduleName = camelCase(fileName.replace(/(\.\/|\.js)/g, ""));
api[moduleName] = {
...requireModule(fileName).default
};
});
export default api;
For Typescript users;
import { camelCase } from "lodash-es"
const requireModule = require.context("./folderName", false, /\.ts$/)
interface LooseObject {
[key: string]: any
}
const api: LooseObject = {}
requireModule.keys().forEach(fileName => {
if (fileName === "./index.ts") return
const moduleName = camelCase(fileName.replace(/(\.\/|\.ts)/g, ""))
api[moduleName] = {
...requireModule(fileName).default,
}
})
export default api

I've used them a few times (in particular for building massive objects splitting the data over many files (e.g. AST nodes)), in order to build them I made a tiny script (which I've just added to npm so everyone else can use it).
Usage (currently you'll need to use babel to use the export file):
$ npm install -g folder-module
$ folder-module my-cool-module/
Generates a file containing:
export {default as foo} from "./module/foo.js"
export {default as default} from "./module/default.js"
export {default as bar} from "./module/bar.js"
...etc
Then you can just consume the file:
import * as myCoolModule from "my-cool-module.js"
myCoolModule.foo()

Just an other approach to #Bergi's answer
// lib/things/index.js
import ThingA from './ThingA';
import ThingB from './ThingB';
import ThingC from './ThingC';
export default {
ThingA,
ThingB,
ThingC
}
Uses
import {ThingA, ThingB, ThingC} from './lib/things';

Nodejs ? Do like this:
Create a folder with index.js, in index file, add this:
var GET = require('./GET');
var IS = require('./IS');
var PARSE = require('./PARSE');
module.exports = { ...GET, ...IS, ...PARSE};
And, in file GET.js, or IS.js export as normal:
module.exports = { /* something as you like */}
ANd now, you need only including index.js like:
const Helper = require('./YourFolder');
Helper will include all of function in YourFolder.
Good day!

This is not exactly what you asked for but, with this method I can Iterate throught componentsList in my other files and use function such as componentsList.map(...) which I find pretty usefull !
import StepOne from './StepOne';
import StepTwo from './StepTwo';
import StepThree from './StepThree';
import StepFour from './StepFour';
import StepFive from './StepFive';
import StepSix from './StepSix';
import StepSeven from './StepSeven';
import StepEight from './StepEight';
const componentsList= () => [
{ component: StepOne(), key: 'step1' },
{ component: StepTwo(), key: 'step2' },
{ component: StepThree(), key: 'step3' },
{ component: StepFour(), key: 'step4' },
{ component: StepFive(), key: 'step5' },
{ component: StepSix(), key: 'step6' },
{ component: StepSeven(), key: 'step7' },
{ component: StepEight(), key: 'step8' }
];
export default componentsList;

You can use require as well:
const moduleHolder = []
function loadModules(path) {
let stat = fs.lstatSync(path)
if (stat.isDirectory()) {
// we have a directory: do a tree walk
const files = fs.readdirSync(path)
let f,
l = files.length
for (var i = 0; i < l; i++) {
f = pathModule.join(path, files[i])
loadModules(f)
}
} else {
// we have a file: load it
var controller = require(path)
moduleHolder.push(controller)
}
}
Then use your moduleHolder with dynamically loaded controllers:
loadModules(DIR)
for (const controller of moduleHolder) {
controller(app, db)
}

I was able to take from user atilkan's approach and modify it a bit:
For Typescript users;
require.context('#/folder/with/modules', false, /\.ts$/).keys().forEach((fileName => {
import('#/folder/with/modules' + fileName).then((mod) => {
(window as any)[fileName] = mod[fileName];
const module = new (window as any)[fileName]();
// use module
});
}));

if you don't export default in A, B, C but just export {} then it's possible to do so
// things/A.js
export function A() {}
// things/B.js
export function B() {}
// things/C.js
export function C() {}
// foo.js
import * as Foo from ./thing
Foo.A()
Foo.B()
Foo.C()

Using Vuetify with i18n using CDNs only

I'm working on a Vue project on a static environment with no Node or Vue-cli,
We're importing Vue, Vuetify and vue-i18n using CDNs
We need to have the Vuetify components translated using the Vue-i18n like shown here
Here is a codepen of an attempt i've made, trying to translate the pagination part at the bottom.
I've tried using Vue.use() but couldn't get it to work, no errors in the console and no translation on the page.
import App from '../components/App.vue.js';
import i18n from '../lang/languages.js';
import store from './store/store.js';
Vue.filter('toUpperCase', function(value) {
return value.toUpperCase();
});
Vue.config.devtools = true;
Vue.use(Vuetify, {
lang: {
t: (key, ...params) => i18n.t(key, params)
}
});
new Vue({
i18n,
store,
el: '#app',
render: (h) => h(App)
});
lang/languages.js:
import { russian } from './languages/russian.js';
import { chineseSimple } from './languages/chinese-simple.js';
import { german } from './languages/german.js';
import { portuguese} from './languages/portuguese.js';
const languages = {
'ru': russian,
'zh-Hans': chineseSimple,
'de': german,
'pt': portuguese,
};
const i18n = new VueI18n({
locale: 'en',
messages: languages
});
export default i18n;

What you are looking for is not available in CDN distributions. You might ask why?
Look at this code:
const Vuetify: VuetifyPlugin = {
install (Vue: VueConstructor, args?: VuetifyUseOptions): void {
Vue.use(VuetifyComponent, {
components,
directives,
...args
})
},
version: __VUETIFY_VERSION__
}
if (typeof window !== 'undefined' && window.Vue) {
window.Vue.use(Vuetify)
}
Especially this part:
if (typeof window !== 'undefined' && window.Vue) {
window.Vue.use(Vuetify)
}
It automatically installs the Vuetify without any configurations such as language and etc, so your Vue.use(Vuetify, {..}) won't get called because Vue won't install plugins twice!
What you could do?
Clone the Vuetify repo and change this part of the code and build a new dist for your self.
Save as the file vuetify.dist.js and change that part of the code
Use some hacky tricky workarounds which I don't recommend, but I created a sample for you.
Here is a code pen example, What I actually do:
Load Vue.js file with scripts tag
Use fetch api to download content of vuetify.dist.min.js
Replace window.Vue to something else to make sure vuetify won't install itself automatically!
Eval the changed code
I DON'T RECOMMEND THIS APPROACH AT ALL
fetch("https://cdnjs.cloudflare.com/ajax/libs/vuetify/1.5.14/vuetify.min.js")
.then(res => res.text())
.then(vutify => {
eval(vutify.replace("window.Vue", "window.Vue2"));
Vue.use(Vuetify, {
lang: {
t: (key, ...params) => i18n.t(key, params)
}
});
const App = Vue.component("app", {
template: `

Cannot read property 'initSdk' of undefined - Appsflyer integration React Native

I'm trying to implement AppsFlyer in a react native app but I have this error "Cannot read property 'initSdk' of undefined"
I imported react-native-appsflyer
import React, { Component } from 'react';
import {
Alert,
Platform,
AppRegistry,
NetInfo,
Text,
} from 'react-native';
//...
import appsFlyer from 'react-native-appsflyer';
//...
And tried to call the initSdk method
export default class App extends Component {
initSdk(){
console.log('allo appsflyer');
let options = {
devKey: 'AF_DEV_KEY',
appId: "IOS_APP_ID",
isDebug: true
};
appsFlyer.initSdk(options,
(result) => {
this.setState( { ...this.state, initSdkResponse: result });
console.log(initSdkResponse);
},
(error) => {
console.error(error);
}
)
}
And launched it in my startApp function
startApp(root) {
this.initSdk();
console.log('app store update --> root', root);
switch (root) {
//...
}
}
}
Someone to help me please ?

This error might occur if the native dependencies were not properly linked, this should be resolved if you run react-native link react-native-appsflyer from the project's root (for Android native dependencies) and add relevant Pod dependencies for iOS:
Add the appsFlyerFramework to Podfile and run pod install.
Example:
pod 'react-native-appsflyer',
:path => '../node_modules/react-native-appsflyer'
(assuming your Podfile is located in iOS directory)
Run pod install
If you are not using cocoapods you can follow the manual integration instructions: https://github.com/AppsFlyerSDK/react-native-appsflyer#manual-integration-integrating-without-cocoapods

Cannot import SCSS file while running mocha test on isomorphic app

I'm trying to test a react component.
Foo.jsx
import * as React from 'react';
require('css/foo'); // foo.scss but using resolve in the webpack
...rest of code
Foo.spec.js (this is just a boiler place for test)
import * as React from 'react';
import * as TestUtils from 'react-addons-test-utils';
import Foo from '../src/js/Foo';
function setup() {
const renderer = TestUtils.createRenderer();
renderer.render(<Menu />);
const output = renderer.getRenderOutput();
return {
props: props,
output: output,
renderer: renderer
}
}
describe('Menu Component', () => {
it('should render', () => {
setup();
})
});
tests.js
function noop() {
return null;
}
require.extensions['.scss'] = noop;
When trying to load mocha from CLI
./node_modules/.bin/mocha tests.js ./test/**/*.spec.js
And I'm getting an error
Error: Cannot find module 'css/foo' ...
I tried:
Handle WebPack CSS imports when testing with Mocha
but it doesn't work either.
If I comment that line out, the test is executing.

I've found the solution.
https://github.com/darul75/web-react/blob/master/app/components/TodoSection/TodoItem.js#L13
When I'm running test on the server:
APP_ENV=SERVER ./node_modules/.bin/mocha tests.js ./test/**/*.spec.js
On the client I have to add a plugin to the webpack config:
plugins: [
new webpack.DefinePlugin({
'process.env': {
'APP_ENV': JSON.stringify('BROWSER'),
}
})
]

Assuming you're using Webpack for the test, you can use Sokra (the creator of Webpack)'s null-loader, to make sure that all SCSS requires/imports result in null, and thereby not causing any errors.
{test: /\.scss?$/, loader: 'null'}
https://github.com/webpack/null-loader