gval
Expression evaluation in golang (by PaesslerAG)
goja
ECMAScript/JavaScript engine in pure Go (by dop251)
| gval | goja | |
|---|---|---|
| 2 | 29 | |
| 792 | 6,264 | |
| 0.6% | 1.5% | |
| 3.7 | 6.4 | |
| 8 months ago | 15 days ago | |
| Go | Go | |
| BSD 3-clause "New" or "Revised" 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.
gval
Posts with mentions or reviews of gval.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-06-09.
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Interpreters built in Go
For practical start, see this: https://www.youtube.com/watch?v=JiViND-bpmw It explain one particular type of parser type that is quite easy to grasp and fun to write. Also look on some libraries that deliver "expression executors" - these are in fact small interpreted languages and can give you plenty of examples. Classic one (though currently unmaintaines I think) is: https://github.com/PaesslerAG/gval but there are plenty more, just google for them. On my last words, this is very enjoyable part of programming but it requires much learning so be patient and have fun!
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My first open-source project looking for feedback
There is a nice lib that let you write much more compact expressions https://github.com/PaesslerAG/gval I'm using this lib for evaluating expressions in a small BPMN engine. At least your solution is missing a context, functions and data to work on. But trying stuff out is propably the best way to learm Go!
goja
Posts with mentions or reviews of goja.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-24.
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Move on to ESM-Only
And yes I know that Grafana has a fork called Sobek that has ESM support, but it is tailored for k6 and they don't have plans for making it easier to use. [2]
[1] https://github.com/dop251/goja/issues/348
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TrailBase: Fast & Open FireBase alternative
The benchmark sets up a custom HTTP endpoint /fibonacci?n= using the same slow recursive Fibonacci implementation for both, PocketBase and TrailBase. This is meant as a proxy for a computationally heavy workload to primarily benchmark the performance of the underlying JavaScript engines: goja for PocketBase and V8 for TrailBase. In other words, the impact of any overhead within PocketBase or TrailBase is diminished by the time it takes to compute fibonacci(N) for sufficiently large N.
- Exploring Goja: A Golang JavaScript Runtime
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Running a Javascript VM in Golang: Data Transforms via User Scripts
We will be using the goja library, a JavaScript VM written in Go, to execute JavaScript code. This setup allows developers to provide custom transformation logic for http payloads and headers.
- Goja: ECMAScript/JavaScript engine in pure Go
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SSR React in Go
dop251/goja
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Show HN: Flyscrape – A standalone and scriptable web scraper in Go
Your comment was posted 4 minutes ago. That means you still have enough time to edit your comment to change it so it contains real URLs:
<https://github.com/PuerkitoBio/goquery>
<https://github.com/dop251/goja>
(Please do not reply to this comment—I won't be able to delete it once the previous post is fixed if it contains replies.)
- Goja: ECMAScript 5.1 implementation in pure Go
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TySON: TypeScript as an embeddable configuration language, without depending on Node or V8
Apparently "not depending on Node or V8" means depending on some random Go JS engine instead.
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Examples of using task scheduler with Go?
Goja https://github.com/dop251/goja
What are some alternatives?
When comparing gval and goja you can also consider the following projects:
expr - Expression language and expression evaluation for Go [Moved to: https://github.com/expr-lang/expr]
otto - A JavaScript interpreter in Go (golang)
cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)
gopher-lua - GopherLua: VM and compiler for Lua in Go
govaluate - Arbitrary expression evaluation for golang
v8go - Execute JavaScript from Go