JSS VS Standard

Most websites those days are SPA applications that render on the front-side. There is also this trend of CSS in JavaScript also knowns as JSS that is debatable (makes everything overcomplicated), but in some specific cases, can be justified and very useful.

> why tf aren't we using JS for styling already

People are and have been for quite a while

https://cssinjs.org/

JSS

It is possible. At its most simple, you could just modify the style property on every element. That's not generally considered best practice, but there are a number of "CSS-in-JS" libraries which streamline the process. The typically generate dynamic CSS classes and apply them to your elements. A big one is JSS.

import React, { useState, useEffect } from "react"; import Amplify, { API, graphqlOperation } from "aws-amplify"; import { createBlog } from "./graphql/mutations"; import { listBlogs } from "./graphql/queries"; import awsExports from "./aws-exports"; import { ListBlogsQuery } from "./API"; Amplify.configure(awsExports); const initialState = { name: "", body: "" }; const App = () => { const [formState, setFormState] = useState(initialState); const [blogs, setBlogs] = useState(); useEffect(() => { fetchBlogs() }, []); const handleInputChange = (event: React.ChangeEvent) => { setFormState({ ...formState, [event.target.name]: event.target.value }); }; const fetchBlogs = async () => { try { const blogData = (await API.graphql(graphqlOperation(listBlogs))) as { data: ListBlogsQuery } setBlogs(blogData.data); } catch (err) { console.log("Error fetching blogs" + err); } }; const addBlog = async () => { try { if (!formState.name || !formState.body) return; const blog = { ...formState }; if (blogs) { await API.graphql(graphqlOperation(createBlog, { input: blog })); await fetchBlogs(); setFormState(initialState); } } catch (err) { console.log("error creating blog: ", err); } }; return (

Amplify Todos

Create Blog {blogs && blogs?.listBlogs?.items?.map((blog, index) => { return (

{blog?.name}

{blog?.body}

); })}

); }; const styles = { container: { width: 400, margin: "0 auto", display: "flex", //real weird issue: https://github.com/cssinjs/jss/issues/1344 flexDirection: "column" as "column", justifyContent: "center", padding: 20, }, todo: { marginBottom: 15 }, input: { border: "none", backgroundColor: "#ddd", marginBottom: 10, padding: 8, fontSize: 18, }, todoName: { fontSize: 20, fontWeight: "bold" }, todoDescription: { marginBottom: 0 }, button: { backgroundColor: "black", color: "white", outline: "none", fontSize: 18, padding: "12px 0px", }, }; export default App;

Material UI v5 brought some amazing updates, but switching from JSS to Emotion had an arguably nasty side-effect: it was no longer as straightforward to group your component styles in classes. Fortunately, a fantastic library emerged that allowed developers to not only reduce the extreme pain from migrating all their classes from v4's makeStyles to emotion, but to also to continue to writing classes in practically the same syntax, with wonderful TS type-safety. This library was tss-react, and it was one of my favorite open source discoveries of 2021.

I started writing a long response, but I want to add that a simple CRA + JSS + TS (named exports only) stack solves or abstracts away most of these issues.

JSS

I picked up standard[1] a while back for this reason, I don't want to have to think about it. It works fine, I have no complaints (took me a while to get used to not using semi-colons but now I prefer it) Same reason I use `cargo fmt` as well.

[1] https://standardjs.com/

# question 1: ? How would you like to use ESLint? … To check syntax only To check syntax and find problems ❯ To check syntax, find problems, and enforce code style # question 2: ? What type of modules does your project use? … ❯ JavaScript modules (import/export) CommonJS (require/exports) None of these # question 3: ? Which framework does your project use? … ❯ React Vue.js None of these # question 4 (select "No", because we won't add TypeScript support for this project): ? Does your project use TypeScript? › No / Yes # question 5: ? Where does your code run? … Browser ✔ Node # question 6: ? How would you like to define a style for your project? … ❯ Use a popular style guide Answer questions about your style Inspect your JavaScript file(s) # question 7 (we'll rely on Airbnb's JavaScript style guide here): ? Which style guide do you want to follow? … ❯ Airbnb: https://github.com/airbnb/javascript Standard: https://github.com/standard/standard Google: https://github.com/google/eslint-config-google # question 8: ? What format do you want your config file to be in? … JavaScript YAML ❯ JSON # the final prompt here is where eslint will ask you if you want to install all the necessary dependencies. Select "Yes" and hit enter: Checking peerDependencies of eslint-config-airbnb@latest The config that you have selected requires the following dependencies: eslint-plugin-react@^7.21.5 eslint-config-airbnb@latest eslint@^5.16.0 || ^6.8.0 || ^7.2.0 eslint-plugin-import@^2.22.1 eslint-plugin-jsx-a11y@^6.4.1 eslint-plugin-react-hooks@^4 || ^3 || ^2.3.0 || ^1.7.0 ? Would you like to install them now with npm? › No / Yes

A Thin JavaScript Document Storage with Middleware Stack

https://github.com/standard/standard/issues/384

For example, if you use https://standardjs.com/ - it will error on your second code snippet and if you ask it for an autofix - it will transfer the minus sign to the first line.

In comparison, JavaScript doesn't have a strict coding standard, although it does have widely accepted code style guides like the Airbnb JavaScript Style Guide and the JavaScript Standard Style. These guides provide recommendations for code formatting and naming conventions, but they are not as strictly enforced as the Java coding standard.