es2020 | Because in hindsight we do n't need most of ES6 | Script Programming library
kandi X-RAY | es2020 Summary
kandi X-RAY | es2020 Summary
browserify transform that compiles a selection of ES6 features to valid ES5:. Because, in hindsight, we can do without most of ES6.
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Trending Discussions on es2020
QUESTION
Im using Typescript, Electron, Webpack and NodeJS to make a webapp but for some reason the import/export isnt working properly.
The error im receiving is:
"Warning: React.createElement: type is invalid -- expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports."
Ive tripled checked my imports and exports and the component is still undefined when its called.
Console.Log Output of appView.tsx imported component:
File Structure:
...ANSWER
Answered 2021-Jun-14 at 04:23*Edited
My mistake was thinking that the webpack ts-loader would take context from from ts-config file and transpile the typescript according to that and webpack the content into the final bundle. Upon looking at my question again ive realised i put the index.tsx file as my entry point which is why i was still getting a bundled webpack file but my imports were undefined the only file being webpack was my index file i believe. That combined with the single file output tsc seems to have been the cause.
tsc
was creating a bundle of my typescript.
webpack
was creating a bundle of just my index.tsx file
Problem entry: './src/index.tsx'
& "outFile": "./dist/main.js"
QUESTION
I am working with Angular 11 and trying to use short imports like import {smthg} from '@common'
instead of import {smthg} from '../../../common'
But I always get errors in IDEA: TS2307: Cannot find module '@common' or its corresponding type declarations.
And same error in console when trying to compile .ts files (ng serve
)
Interestingly, when I add /index
to the import, then IDEA stops cursing, but the error does not disappear in the console
ANSWER
Answered 2021-Jan-25 at 07:46So it turned out that the angular engine allows creating aliases for paths based on what is specified in the "paths" in tsconfig.
But in order to be able to access both the subfolders of the module and what is exported from the index.ts at the top level of the module, you need to specify "paths" like this:
QUESTION
I have quite a strange problem. In my angular app my routing module is mixing up components. So if I put in the address for component-x it will take me instead to component-y. If I change the order of the route object the route that same address suddently goes to the right component or even sometimes it can't find the component at all.
I tried making all the variables in the path's unque, adding pathMatch: 'full', runGuardsAndResolvers: 'always' and even stripping all everything down to a standard implementation. I upgraded from 10 -12 hoping it would fix itself but alas!
Here is my code:
...ANSWER
Answered 2021-Jun-12 at 02:03When you have routes defined with only route params this is the behavior you get. This is why it is bad practice to not have a constant path and have only route params.
Quick hack fix is to move any routes that start with params to the end of the routes array.
The real fix is to add a constant to the beginning of those routes. Such as “category/something/something-else” for the category component.
QUESTION
I'm making a bot with discord.js using TypeScript, but I get the following error when trying to run the resulting JavaScript.
...ANSWER
Answered 2021-Jun-07 at 06:53Is there a reason why you use ESM in your code? You can configure TypeScript to use CommonJS modules like this:
QUESTION
I am trying to build an Angular mono repo. However, when I try to run lerna run start --scope=@demo/core-app
I get the following error:
ANSWER
Answered 2021-May-23 at 19:15I think you don't need to add references and paths in tsconfig.json
on both side, lerna should be able to do it for you after bootstrapping.
1. remove references
, paths
and composite
in tsconfig.json
After you remove references and paths, you should be able to see a different error indicating the missing @demo/shared/models/ExampleModel
module.
2. move the models
folder in shared module
To have the exact path of @demo/shared/models/ExampleModel, move the models
folder to the root level of shared module and remove src
folder.
3. use interface or type for type definition. Otherwise, you will hit "Strict Class Initialization" error
shared/models/ExampleModel.ts
QUESTION
When trying to run my tests in a dual client / server repo, I'm getting the following error that I can't seem to get past.
...ANSWER
Answered 2021-May-14 at 13:52Turns out this was a weird package-lock.json
issue. Wiping away node_modules/
and package-lock.json
for a fresh install fixed thing. Not super sure how things got out of wack, but they did somehow.
QUESTION
I created a package in Typescript and published it on NPM. I have set declaration: true
in tsconfig.json
of this package project. When I build this project, the TS compiler generates the .d.ts files as expected, however, these files are not published on NPM and as a result, when I install this package in some other project, I get the error, Cannot find module '121cars-common' or its corresponding type declarations.
Here's my package.json file:
...ANSWER
Answered 2021-May-13 at 18:31You need to use files key, that way only things in the files
array will be published to npm, and you don't need .npmignore
example:
QUESTION
Hello have been trying to extract and repack an app.asar to update files inside the package :
await asar.extractAll(path.join(__dirname, './app.asar'),path.join(__dirname, './destfolder'));
Then changing some files in destfolder then
await asar.createPackage(path.join(__dirname, './destfolder'),path.join(__dirname, './app.asar'));
But i have been getting this error :
...ANSWER
Answered 2021-May-11 at 02:58That error is apparently coming from this line of code in the asar package's lib/filesystem.js:
QUESTION
In server.ts, importing PrismaClient like this:
...ANSWER
Answered 2021-Mar-22 at 06:31Prisma doesn't support ES6 modules yet. I would suggest following this request and in the meantime using CommonJS i.e. removing "type": "module"
from your package.json
and setting the target
in tsconfig.json
to ES2018
.
QUESTION
I have a Vue 2.6 project and I want to use the es2020 characteristics like optional chaining in my project but I can't get it to work in my project. I'm getting the following error.
...ANSWER
Answered 2021-Apr-27 at 11:31I don't think so you can achieve that, unless you will implement it by yourself. ES2020 features such an optional chaining are available in Vue 3
, but not Vue 2.x
.
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