ts-jest
svelte-preprocess
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ts-jest | svelte-preprocess | |
---|---|---|
18 | 23 | |
6,839 | 1,703 | |
- | 0.9% | |
8.0 | 5.7 | |
11 days ago | 1 day ago | |
TypeScript | TypeScript | |
MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ts-jest
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In-Depth guide for TypeScript Library
use ts-jest and set up Paths Re-Map
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Is using Jest for anything other than React a bad idea?
ts-jest has had some strange performance issues and workarounds in the past, though I haven’t used it very recently so it might have fixed those by now.
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Test-Driven Infrastructure Development with Pulumi and Jest
Since we're working with TypeScript, we can use ts-jest, which conveniently brings Jest along for the ride:
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Improve your Testing with Custom Matchers in Jest
I want to save you from manually copying the snippets one by one, so here is a Gist with the complete test file. This can be easily executed with Jest (or ts-jest for TypeScript).
- Testing Mongoose with Ts-Jest
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A complete guide to full-stack live reload
See the Jest configuration docs to learn more about Jest configuration. ts-jest also has good documentation.
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Setup Jest to React Typescript Vite project, also SWC (part 1)
Using @swc/jest to compile code to CommonJS is much faster than babel-jest, ts-jest which have long cold starts when executing tests in a large project.
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Component Testing in Svelte
ts-jest: A transformer for handling TypeScript files.
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The Ultimate Guide to TypeScript Monorepos
Thankfully using TypeScript and TypeScript project references makes the intricate problem of using Jest easier since we can make use of the excellent ts-jest Jest transformer. All we need to do it point ts-jest to the respective tsconfig.json file for each package (see example jest.config.js). Since we have configured TypeScript to be composite and incremental, we do not need to recompile TypeScript for dependencies of a package we want to test, which significantly reduces the runtime for unit tests. ts-jest will also ensure that any error message will reference the line numbers in the source TypeScript files.
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Testing Svelte components with Jest and Vite
We need to configure Jest to transform our files. We must explicitly set our test environment to jsdom, which we are using through Jest. Since v27 Jest's default test environment is node. I will put the configuration in a specific Jest configuration file called jest.config.json in the project root folder. If you create a configuration file called jest.config.js, Vite will complain as it expects only ESM JavaScript by default. Vite will recommend that you rename it to a ".cjs" file if you want to do it that way. You can look at the different ways to configure Jest if you are unsure about the file conventions. If you're using TypeScript, you need to configure svelte-preprocess and ts-jest also, see the svelte-jester docs for how to do that.
svelte-preprocess
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How does the Svelte compiler works with the Typescript compiler?
svelte-preprocess is responsible for processing things like TypeScript and SCSS. The svelte compiler itself is only responsible for turning the svelte file into JavaScript.
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Sveltekit scss issue
svelte-preprocess should handle scss out-of-the-box, and it’s included in SvelteKit by default if you created your project with create-svelte
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PostCSS- NESTED --- How can i use it inside a component
Have you tried https://github.com/sveltejs/svelte-preprocess
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Supercharge Web DX in Svelte way
// svelte.config.js import preprocess from 'svelte-preprocess' import adapter from '@sveltejs/adapter-static' /** @type {import('@sveltejs/kit').Config} */ const config = { // Consult https://github.com/sveltejs/svelte-preprocess // for more information about preprocessors preprocess: [preprocess({ postcss: true })], kit: { // I can even build php file which I can use in current project seamlessly! adapter: adapter({ fallback: 'myapp.php' }), files: { assets: 'src/assets', }, appDir: 'myapp', } } export default config
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SvelteKit error: "[vite] Error when evaluating SSR module" when using ssh2-promise
/** @type {import('@sveltejs/kit').Config} */ const config = { // Consult https://github.com/sveltejs/svelte-preprocess // for more information about preprocessors preprocess: preprocess(),
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Testing Svelte components with Jest and Vite
We need to configure Jest to transform our files. We must explicitly set our test environment to jsdom, which we are using through Jest. Since v27 Jest's default test environment is node. I will put the configuration in a specific Jest configuration file called jest.config.json in the project root folder. If you create a configuration file called jest.config.js, Vite will complain as it expects only ESM JavaScript by default. Vite will recommend that you rename it to a ".cjs" file if you want to do it that way. You can look at the different ways to configure Jest if you are unsure about the file conventions. If you're using TypeScript, you need to configure svelte-preprocess and ts-jest also, see the svelte-jester docs for how to do that.
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What if someone made a better svelte? Would people be interested?
If you want to write pug, there are tools that allow you to do that: https://github.com/sveltejs/svelte-preprocess
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Getting started with Svelte, Tailwind, and Nrwl NX
All this file does is export a configuration object for the build of our Svelte application. By default, it uses the svelte-preprocess package, which is a preprocessor for Svelte providing support for PostCSS, SCSS, TypeScript, and much more.
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SvelteKit - How to set up global SCSS accessible to all components?
import preprocess from 'svelte-preprocess' import path, { dirname } from 'path' import { fileURLToPath } from 'url' import adapter from '@sveltejs/adapter-node' const filePath = dirname(fileURLToPath(import.meta.url)) const sassPath = `${filePath}/src/lib/style/` const config = { // Consult https://github.com/sveltejs/svelte-preprocess // for more information about preprocessors preprocess: preprocess({ scss: { prependData: `@import '${sassPath}_global-imports.scss';` } }), .... } export default config
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Make an Email Form Submission with SvelteKit
import adapter from '@sveltejs/adapter-vercel' import { mdsvex } from 'mdsvex' import preprocess from 'svelte-preprocess' import mdsvexConfig from './mdsvex.config.js' /** @type {import('@sveltejs/kit').Config} */ const config = { extensions: ['.svelte', ...mdsvexConfig.extensions], // Consult https://github.com/sveltejs/svelte-preprocess // for more information about preprocessors preprocess: [ mdsvex(mdsvexConfig), [ preprocess({ postcss: true, }), ], ], kit: { target: '#svelte', adapter: adapter(), }, } export default config // Workaround until SvelteKit uses Vite 2.3.8 (and it's confirmed to fix the Tailwind JIT problem) const mode = process.env.NODE_ENV const dev = mode === 'development' process.env.TAILWIND_MODE = dev ? 'watch' : 'build'
What are some alternatives?
vite - Next generation frontend tooling. It's fast!
jest - Super-fast alternative for babel-jest or ts-jest without type checking. Please use main repository for issues
esbuild - An extremely fast bundler for the web
style-resources - Style Resources for Nuxt 3
tsup - The simplest and fastest way to bundle your TypeScript libraries.
bob-esbuild - Building and Running TypeScript projects efficiently with rollup + esbuild
tsc-esm-fix - Make Typescript projects compatible with esm/mjs requirements
postcss-preset-env - Convert modern CSS into something browsers understand
sveltekit-blog-template - A SvelteKit blog template
svelte-vite-jest-template - Svelte template based on Vite's Svelte template, but includes unit testing setup (Jest and Svelte Testing Library).
svelte-i18n - Internationalization library for Svelte
postcss-nested - PostCSS plugin to unwrap nested rules like how Sass does it.