cssinjs/jss

[nested] Nested selectors are not calculated properly with `$` in it

Open

#1,321 opened on Mar 26, 2020

View on GitHub
 (0 comments) (0 reactions) (0 assignees)JavaScript (434 forks)batch import
bughelp wanted

Repository metrics

Stars
 (7,000 stars)
PR merge metrics
 (No merged PRs in 30d)

Description

Expected behavior: Nested selectors should include escaped $ in its parent's selector

Describe the bug: selectors that are nested drop the $ and keep the escape backslash, while their parent selector includes \$.

  1. Open up https://cssinjs.org/repl
  2. On line 23, change the selector to '$Button' or '\$Button'
  3. Observe the nested selectors generated

The issue happened in my react app where components are mangled by webpack, and some of them starts with $ (like $z). In that situation, the nested selectors do not work.

Codesandbox link: Just use the https://cssinjs.org/repl

Versions (please complete the following information):

  • jss: 10.0.0
  • Browser [e.g. chrome, safari]: chrome
  • OS [e.g. Windows, macOS]: windows Feel free to add any additional versions which you may think are relevant to the bug.

Annotation 2020-03-25 174036

Contributor guide

Research direction
Investigate the selector parsing logic in JSS, particularly how it handles escaped `$` in nested selectors. Look for test cases and the part of code that combines parent and child selectors.
Tech stack
javascript
Domain
frontend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
JavaScriptGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75