Comments (8)
For me, i encountered an error when use named capturing group in regex
(?<Name>x)
from hermes.
Hermes does not yet support named capture groups in RegExp. We're adding newer JS features incrementally and named capture groups will be implemented in the future. Unfortunately, priority for this particular feature is low because we have other features to implement first, but we're open to working with the community on pull requests to add it.
You can see more information about RegExp support here:
https://github.com/facebook/hermes/blob/master/doc/RegExp.md
from hermes.
I've discovered the issue, I needed to add some "seemingly useless" escapes. Just a challenge with different regex parsers:
/{{2}/
turned to:
/\{{2}/
Fixes the issue. Just something to note for any other developer out there that has some regex and it's only failing on Hermes.
from hermes.
If any one still running this issue despite solutions mention above, I could sort it out adding he @babel/preset-env
to the dev dependencies, apparently, that babel has de plugin that fixes this reg exp issue
from hermes.
@juananime I tried adding @babel/preset-env
, rebuild, restart packager, etc. but still same issue. Can you plz give a little more details about what you did to get your regex working?
from hermes.
For me, i encountered an error when use named capturing group in regex
(?<Name>x)
How did you solve it?
from hermes.
For me, i encountered an error when use named capturing group in regex
(?<Name>x)
How did you solve it?
just use didn't use named capturing group because it doesn't have native support in hermes. Maybe in fresh version of hermes was implemented, I didn't check it.
from hermes.
what @juananime means is this
from hermes.
Related Issues (20)
- Building Static Hermes on Windows HOT 5
- Problems finding libraries with fresh compile under windows HOT 3
- Conversion of large array to a Set seems slow HOT 5
- React Native & Hermes: Is Additional Code Obfuscation Beneficial? HOT 1
- Array.protoype.indexOf() Performance Regression HOT 3
- 'hermes-engine' uses the unencrypted 'http' protocol to transfer the Pod.
- hermes-eslint missing `__defineGeneric` in context `getScope` HOT 1
- Date constructor accept wrong ISO 8601 date HOT 2
- libc.so (SIGABRT, SIGSEGV) HOT 4
- Performance regression traversing large arrays compared to other engines HOT 5
- Hermes 0.7.2 : Max heap size was exceeded HOT 4
- hermes eslint: No sourceCode in context HOT 6
- Bug: recursion: "Maximum call stack size exceeded" HOT 2
- Wrong `DCMAKE_TOOLCHAIN_FILE` in docs HOT 3
- Intl.NumberFormat can't always display the number's sign HOT 1
- Intl.NumberFormat with compact notation doesn't display formatting HOT 1
- Examples how to use the experimental C ABI? HOT 3
- babel-plugin-syntax-hermes-parser drops chunk names HOT 1
- static_h: Assertion `Val && "isa<> used on a null pointer"' failed with -typed on tsc.js HOT 2
- fatal: unable to access 'http://github.com/facebook/hermes.git/' HOT 2
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from hermes.