i am running an app in aspnetcore which uses plain js files for the view part,
in this case is a legacy app using :
jquery
Requirejs with AMD modules
Durandal (now aurelia) which enforces the use of those modules
Knockoutjs (mvvm lib)
here an example of durandal/amd module code (if anyone has seen it already)
define(['durandal/app',
'plugins/dialog',
'global',
'knockout',
'services/datacontext',
'services/appsecurity'],
function (app, dialog, global, ko, datacontext, appsecurity) {
/// ... function body using modules but no intellisense...
}
this is the structure of my app
--src
----aspnectoreapp
-------wwwroot
---------App (contains app code using durandall structure)
-----------Config.js (requirejs config file)
-----------Main.js (entry point)
---------Scripts (contains js libs like all the aboves)
how can i make this to work with vscode intellisense?
i tried adding packages with npm init, and npm install -D
adding both packages and types..
i also tried adding this in my wwwroot/jsconfig.json
{
"compilerOptions": {
"module": "amd",
"target": "es6"
}
}
but got no luck.
I also tried installing the requirejs vscode extension specifying a settings.json workspace solution file (at top level), with this values
{
"requireModuleSupport.modulePath": "./src/aspnectoreapp/Scripts",
"requireModuleSupport.configFile": "./src/aspnectoreapp/App/Config.js"
}
but got no luck .
Anyone which tried any of those settings or knows a way this could work?
Related
I'm trying to add OfficeUI fabric components in a blog build using gatsby js.
As soon as I'm importing any component, the site stop to works.
Using develop command, I can see in the browser console : SyntaxError: export declarations may only appear at top level of a module
How to fix this ? (I'm very new to node dev).
Searches I've done suggest problems with babel not using the es2015 preset. However, I double checked, the .babelrc file is mentioning this preset.
Here's the complete operations I've done (on Windows 10 x64 if it matters):
cloned the gatsby-starter-blog-no-styles repo :
gatsby.cmd new someblog https://github.com/noahg/gatsby-starter-blog-no-styles
cd someblog
npm install
drink a coffee (will move to yarn soon)
Check that works
gatsby develop
Opened the browser (http://localhost:8000). Its Ok
added office ui fabric react components
npm install --save office-ui-fabric-react
Restart gatsby develop. Still working
change src/layouts/index.js file to import an office component
import React from 'react'
import Link from 'gatsby-link'
import { Button } from 'office-ui-fabric-react/lib/Button'
class Template extends React.Component {
....
And voilà! it stop to works. In the browser console, I see an error : SyntaxError: export declarations may only appear at top level of a module
I put in GH a complete reproduction repository : https://github.com/stevebeauge/repro-gatsbyjs-officeui-error
[Edit] Digging a bit I can see in the generated 'common.js' file the error :
/***/ "./node_modules/office-ui-fabric-react/lib/Button.js":
/***/ (function(module, exports) {
export * from './components/Button/index';
//# sourceMappingURL=Button.js.map
/***/ }),
The export here seems to be forbidden, which leads to Babel issue (not found how to solve though)
Recently i stumbled upon the similar error, my solution was to explicitly import from lib-commonjs:
import { Button } from 'office-ui-fabric-react/lib-commonjs/Button';
instead of
import { Button } from 'office-ui-fabric-react/lib/Button'
Seems to be the error occurs since babel isn't converting office-ui-fabric-react to CommonJS module.
I have built a custom element/web component to load and display Unity generated WebGL content. The web component imports the UnityLoader.js module - and works fine when used within an app served with 'polymer serve'.
However, when I build an app that uses my web component via the Polymer-CLI build process, no errors are given, but when I access a page using my component I always end up with an error from within UnityLoader.js:
"ReferenceError: BabelHelpers is not defined"
If I create the element directly within my app (in other words it is no longer managed by bower) then I can exclude the minification and compilation steps within the build section of my application's polymer.json file and the built version of the app works fine.
"builds": [
{
"preset": "es5-bundled",
"js": {
"compile": {"exclude": ["content/**/*","UnityLoader.js"]},
"minify": {"exclude": ["content/**/*","UnityLoader.js"]}
},
"html": {
"minify": {"exclude": ["content/**/*"]}
}
}
]
I've looked at my application's polymer.json file and I can see that the extraDependecies node contains some dependencies that other web components have placed there:
"extraDependencies": [
"bower_components/webcomponentsjs/*.js",
"!bower_components/webcomponentsjs/gulpfile.js",
"manifest.json",
"bower_components/plastic-image/intersection-observer.js",
"bower_components/ua-parser-js/dist/ua-parser.min.js"
],
I have UnityLoader.js within the extraDependencies of the element's polymer.json but that isn't getting cascaded up to an application that imports/consumes the element - which I guess must be possible as plastic-image and ua-parser-js have done it (I've looked at their bower_components folders and nothing seems obvious - other than the latter is installed as a dependency of the former).
Any ideas on how I can make sure that the UnityLoader.js that my web component uses is not compiled or minified during the build process of an application that consumes it?
I was having a similar issue with firebase-auth.js when making an ES5 build using polymer-cli 1.7.0. There might be a problem when compiling/minifying specific files. I had to roll back to 1.6.0 using npm install -g polymer-cli#1.6.0 to fix the problem.
I have vscode 1.9 and I want to have intellisense for jest tests. The problem is that describe, it, expect etc are globally available in jest and you don't need to import them in your test files. So vscode will not show intellisense for them.
Is there any configuration for globals for automatic type acquisition?
You have a few options in this case:
Add jest to your package.json:
"dependencies": {
"jest": "^18.1.0"
}
This only works if you are working JavaScript and do not have a tsconfig.json.
Install #types/jest
$ npm install -D #types/jest
This should work for both JavaScript and TypeScript projects. However #types but may be disabled by a jsconfig.json/tsconfig.json: http://www.typescriptlang.org/docs/handbook/tsconfig-json.html
Create a jsconfig.json file in the root of your workspace to specifically include jest:
{
"typeAcquisition": {
"include": [
"jest"
]
}
}
This will only work for JavaScript projects when automatic typings acquisition is enabled.
All of these should allow VSCode to pick up jest's typings without an import or require
I tried installing the #types/jest, and it did work, but the problem is that it resulted in the jest suggestions appearing in my .js files as well. I couldn't figure out how to get global suggestions for test, expect, etc. in only .test.js files but not .js files.
So I decided to just manually import each jest global I was going to use in each .test.js file, which allowed the suggestions to appear with types but avoided having the suggestions appear in the .js files:
import { test, expect } from '#jest/globals'
npm install -D #types/jest
edit jest.config.js
typeAcquisition: {
include: ['jest'],
},
I am trying to set up Jest on a React based project which uses ES6 modules. However I seem to be having issues with ES6 modules, I am using babel-jest and believe I have this set up properly (Jest detects it automatically).
Jest doesn't seem to have a problem using ES6 imports however as soon as it hits on an import statement within one of the imported modules it chokes. It's as if it is only transpiling the initial test script and not any of the imported modules. I have tried various configurations and tried searching Google with no luck. Running tests without any imports works fine.
Here is the error:
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import Predications from './predications';
^^^^^^
SyntaxError: Unexpected token import
Here are the relevant bits of config:
jest.conf.json
{
"testRegex": "\/test\/spec\/.*\\.js$",
}
.babelrc
{
"presets": ["es2015", "stage-0", "react"]
}
Test script
import React from 'react';
import { mount, shallow } from 'enzyme';
import Slider from 'react-slick';
import Carousel from '../../client/components/carousel/carousel.js'; // test chokes on when I include this module
describe('carousel component', () => {
it('is a test test case', () => {
expect(1 + 2).toEqual(3);
});
});
Update:
As suggested, I have tried running the test without jest.conf.js, however the testRegex is needed in order for Jest to find my tests, I tried moving tests to the default test directory and they still fail.
I would like to clarify that tests themselves are running fine, the issue seems to be where one of my imported modules uses ES6, in my example above, if I don't import my carousel component the test runs fine, as soon as I import that the test chokes on the import statement within that file. It seems as though the imported modules are not getting transpiled.
Update #2
After some investigation it appears the issue is that babel is not transpiling ES6 within node_modules. I have created an example repo to demonstrate this here: https://github.com/jamiedust/babel-jest-example
I understand that third party modules should be handling their own transpiling, however we have a number of modules which are hosted on our own npm registry and are re-used between projects, in these cases Webpack handles transpiling, for the Jest tests we need these node_modules to be transpiled by Babel, or a way of leveraging our webpack set up to do this for us.
Solution
Add the following config in package.json (or Jest config file).
"jest": {
"transformIgnorePatterns": [
"/node_modules/(?!test-component).+\\.js$"
]
}
By default any code in node_modules is ignored by babel-jest, see the Jest config option transformIgnorePatterns. I've also created a PR on your example repo, so you can see it working.
While this works, I've found it to be extremely slow in real applications that have a lot of dependencies containing ES modules. The Jest codebase has a slightly different approach to this as you can find in babel-jest transforming dependencies. This can also take much longer on Windows, see Taking 10 seconds on an empty repo.
If doing "unit" testing, mocking is probably the better way to go.
You could try adding the transform-es2015-modules-commonjs plugin to your babel config file for testing only. Here is an example config file which tells babel to transpile modules only when in a testing environment. You can put it underneath your presets:
{
"presets": [
"react",
["es2015", {"modules": false, "loose": true}]
],
"env": {
"test": {
"plugins": ["transform-es2015-modules-commonjs"]
}
}
}
You can read about the plugin here:
https://www.npmjs.com/package/babel-plugin-transform-es2015-modules-commonjs
Then, when running your Jest tests on the command line specify NODE_ENV=test (you may need to add the --no-cache flag to the command the first time after making the change to the babel config because Jest caches babel output, but after that you can leave it off:
NODE_ENV=test jest --no-cache
I learned about this issue in a React seminar by Brian Holt at Frontend Masters. https://frontendmasters.com/courses/
faced the same issue, followed the steps to resolve,
install babel-jest
in jest config add this configuration
transform: {
'^.+\\.js?$': require.resolve('babel-jest')
}
make sure you have babel.config.js present (your config might be different than provided below)
module.exports = {
"env": {
"test": {
presets: [
[
'#babel/preset-env',
{
targets: {
node: 'current',
},
},
],
]
}
}
};
I faced the same problem (node_module not transpiled by babel-jest), without being able to solve it.
Instead, I finally succeed by mocking the node_module, like described here https://facebook.github.io/jest/docs/manual-mocks.html
NB: setting mocks in __mocks__ subfolders did not work for me. So I passed the mock as the second parameter of the jest.mock() function. Something like :
jest.mock('your_node_module', () => {})
Another possible cause. Babel now ignores your .babelrc inside node_modules and uses the one provided by the dependency. If you have control of the dependency you would have to add a .babelrc to it and babel would use those settings for it.
this can cause problems though if your dependency and your project use different babel versions or modules.
For instance with bower I could do something like this to get only the scss files (excluding js):
{
"dependencies": {
"bootstrap-sass": "~3.3.5"
},
"overrides": {
"bootstrap-sass": {
"main": [
"assets/stylesheets/_bootstrap.scss"
]
}
}
}
I am having an hard time understanding how to do it with systemjs. in the config.js file I guess but even reading the docs I could not figure it out.
My use case is: while developing I am loading Material angular with systemjs but I want to load only the js files, not the css, which I want to manage indenpdently in my scss. Instead systemjs keep loading the file angular-material.css. I just started with systemjs and jspm, hope you can help.
nb: my problem is not related to the jspm build or bundle process but to the development time with these tools.
JSPM supports overrides as well. See https://github.com/jspm/registry/wiki/Configuring-Packages-for-jspm#testing-configuration for configuration options.
Using JSPM overrides you can easily override the main file and directories and files that you need from a module.
Upd. The css dependency is defined in the registry: https://github.com/jspm/registry/blob/974beb8b6520f4c1b3c6373db32ad05da5c82446/package-overrides/github/angular/bower-material%400.4.0.json It needs to be overwritten with the local override.