jarvis
JARVIS - Write me a codemod (by rajasegar)
recast
JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator (by benjamn)
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| jarvis | recast | |
|---|---|---|
| 1 | 6 | |
| 16 | 4,832 | |
| - | - | |
| 5.0 | 5.8 | |
| about 1 month ago | 6 days ago | |
| JavaScript | TypeScript | |
| MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
jarvis
Posts with mentions or reviews of jarvis.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-09-06.
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JARVIS – Write me a Codemod
To know more about how JARVIS works, you can take a look at the source code here, it is built in Ember.js.
recast
Posts with mentions or reviews of recast.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-04-05.
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What is an Abstract Syntax Tree in Programming?
GitHub | Website
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[AskJS] Any good shortcuts for migrating off of enzyme?
If jscodeshift is confusing, I recommend looking into using recast directly, along with ast-types for AST traversal and its node factories. Inside your visitors, write some conditionals that check for the patterns you want to detect, then mutate the node passed to the visitor, or otherwise mutate the AST. Keep going until tests are passing.
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Evan you on Svelte migration from Vue
I ended up writing my own codemod tool based on recast to automate most of the repetitive, mindless grunt work. Even with the tool shaving hundreds of hours off of the migration effort, there's still a huge amount of work left, since we need to find or create Vue 3-compatible alternatives of all of our Vue 2-only dependencies. Some of these dependencies (e.g. vee-validate) are used pretty ubiquitously too
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Which library to use for AST manipulation?
I had great results with a combination of babel + recast. Babel is doing the job and Recast is mostly here to preserve the original style when printing code again. I animated a workshop @ Node.JS Montréal 2019 that was recorded here. We cover the parse/transform/print of code using Babel (live coding starts around 45').
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JARVIS – Write me a Codemod
recast
- Show HN: Monocle – bidirectional code generation library
What are some alternatives?
When comparing jarvis and recast you can also consider the following projects:
jscodeshift-react-i18next - jscodeshift transform that aims to extract hardocded strings in React applications
escodegen - ECMAScript code generator