OneOf | Easy to use F -like ~discriminated~ unions for C
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kandi X-RAY | OneOf Summary
"Ah! It's like a compile time checked switch statement!" - Mike Giorgaras.
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QUESTION
I'm defining a type whose type parameters have some relations. I have Item
type which takes Cat
and SubCat
, but you can use some of the types of SubCat
depending on Cat
. For example, when you specify Cat1
as Cat
, you can specify SubCat1
or SubCat2
as SubCat
.
I implemented it using ValidSubCats
type family to define valid SubCat
s for each Cat
, and OneOf
type family to define a constraint.
ANSWER
Answered 2022-Apr-10 at 18:45I would suggest using something which has a value-level representation, since we can directly manipulate such things more easily. This is often easier to work with in general. For example:
QUESTION
I've created a new React app by running npx create-react-app@latest --typescript .
and I've run the project using npm start
and it all works as expected. I ran npm install semantic-ui-react semantic-ui-css
and that installs correctly.
But when I add import 'semantic-ui-css/semantic.min.css';
to index.tsx
as instructed, I get a failed to compile error
.
Here's my index.tsx
file:
ANSWER
Answered 2021-Dec-15 at 21:37Judging from this issue:
CSS import breaks webpack 5 compilation
I believe this is an issue with Semantic-UI-React and Webpack 5 (which is used by Create-React-App).
The final answer in that issue is a suggestion to switch to Fomantic-UI 😅
This should be reported into the upstream repo: https://github.com/Semantic-Org/Semantic-UI. The problem is that it's dead 🙄 Reasonable solution is to switch to https://github.com/fomantic/Fomantic-UI.
https://github.com/Semantic-Org/Semantic-UI-React/issues/4287#issuecomment-935897619
QUESTION
I'm trying to replace the Tailwindcss compiler with @tailwindcss/jit in a Laravel project that is using Vue Laravel Mix but I'm getting this Unknown word error.
✖ Mix Compiled with some errors in 489.07ms
ERROR in ./resources/sass/app.scss Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js): ModuleBuildError: Module build failed (from ./node_modules/postcss-loader/dist/cjs.js): SyntaxError
(1:1) /Users/username-76/Desktop/projectname/resources/sass/app.scss Unknown word
1 | import api from "!../../node_modules/style-loader/dist/runtime/injectStylesIntoStyleTag.js"; | ^ 2 | import content from "!!../../node_modules/css-loader/dist/cjs.js??ruleSet[1].rules[6].oneOf[1].use[1]!../../node_modules/postcss-loader/dist/cjs.js??ruleSet[1].rules[6].oneOf[1].use[2]!../../node_modules/sass-loader/dist/cjs.js??ruleSet[1].rules[6].oneOf[1].use[3]!./app.scss"; 3 |
at processResult (/Users/username-76/Desktop/projectname/node_modules/webpack/lib/NormalModule.js:701:19) at /Users/username-76/Desktop/projectname/node_modules/webpack/lib/NormalModule.js:807:5 at /Users/username-76/Desktop/projectname/node_modules/loader-runner/lib/LoaderRunner.js:399:11 at /Users/username-76/Desktop/projectname/node_modules/loader-runner/lib/LoaderRunner.js:251:18 at context.callback (/Users/username-76/Desktop/projectname/node_modules/loader-runner/lib/LoaderRunner.js:124:13) at Object.loader (/Users/username-76/Desktop/projectname/node_modules/postcss-loader/dist/index.js:140:7)
1 ERROR in child compilations (Use 'stats.children: true' resp. '--stats-children' for more details) webpack compiled with 2 errors
app.scss
...ANSWER
Answered 2021-Jul-30 at 19:30You're using the PostCSS plugin, yet you are attempting to compile SASS. Do it the following way instead.
QUESTION
After creating a Vue 3 project, adding Vuetify 3 Alpha, when I run "npm run serve", this is the error I get. I tried without adding Vuetify 3 Alpha and the Vue 3 project starts fine, it's just after adding the Vuetify that the error appears.
...ANSWER
Answered 2021-Nov-15 at 03:41I had the same error after running vue add vuetify
Run npm update
and re-create the project again.
Also make sure you are on the latest versions of the following.
QUESTION
I'm working on a recursive tree of this type
...ANSWER
Answered 2022-Feb-11 at 21:20The problem is that both rootDecoder
and intIdDecoder
are defined as looking for a field named "id"
in an object via Decode.field "id" ...
. Inside treeDecoder
, you are first fetching the "id"
field, so your decoder is valid for some JSON like this
QUESTION
I just upgraded to Angular 13 from Angular 12 and also updated some other NPM packages.
One of them contained scss files that are referenced in my angular.json file. This was never a problem, but after trying to serve my application I get an error message that is hard to understand for me:
ANSWER
Answered 2022-Jan-12 at 03:21It was because of a cached version of node-sass.You can try this.
- Remove the node-sass from global npm-cache(For Windows users %userprofile%\AppData\Roaming\npm-cache).
- Remove node-sass from your project's node_modules dir.
- Do npm install to reinstall node-sass.
QUESTION
My question is the following, I can receive a JSON, where inside it can come two types of class "CHANGE" or "WITHDRAW" in the same type of request. Below is an example JSON 1 and JSON 2
JSON 1
...ANSWER
Answered 2022-Jan-04 at 01:28I think there are multiple ways to do so
This will convert you string into JsonNode where JSON1 is the string provided
QUESTION
I am deserializing some JSON using Serde. I am having problems with a value that is usually an array of strings, but can also be the constant string "all"
. Expressed in JSON-schema it looks like this:
ANSWER
Answered 2021-Dec-28 at 10:38It's possible with the combination of an untagged enum representation and deserialize_with
variant attribute:
QUESTION
I am writing a "Terms of Service" page using ReactJS
and my idea is to copy the contents of the file tos-text.txt
in the component at build time, to avoid fetching time when the page is opened.
I tried as follows, but with poor results:
ANSWER
Answered 2021-Nov-30 at 12:44You can simply use "embedding" to display your static file within a React component.
Using :
QUESTION
I tried Vue's defineCustomElement()
to create a custom element, but the child component styles are not included in the shadow root for some reason.
I then tried to manually create my shadow root using the native Element.attachShadow()
API instead of using defineCustomElement()
(based on a Codesandbox), but then no styles were loaded at all:
Code: main.js
:
ANSWER
Answered 2021-Nov-04 at 21:07That Vue config is not necessary in Vue 3. It was only needed by the dev server in Vue 2 to render the styles in custom elements.
Using defineCustomElement()
is the recommended way to register custom elements. However, there's an open issue when using defineCustomElement()
, where nested component styles are not rendered at all (@vuejs/vue-next#4462
).
A workaround is to import all components as custom elements so that the styles are attached to the component definition instead of being appended to , then insert those styles into the DOM upon mounting:
Enable
vue-loader
'scustomElement
mode invue.config.js
:
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