goja
gopher-lua
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goja | gopher-lua | |
---|---|---|
25 | 7 | |
4,931 | 6,005 | |
- | - | |
6.3 | 4.9 | |
2 months ago | 13 days ago | |
Go | Go | |
MIT License | MIT License |
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.
goja
- 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
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Running a Js file inside Go
Either call a JavaScript interpreter like node with exec.Command and read its stdout, or use a pure Go JavaScript interpreter like goja or otto.
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easytemplate - Go's text/template library with JS Super Powers
Just to also say this is implemented in pure Go we aren't including V8 or any external dependencies we instead use https://github.com/dop251/goja which is a JS VM written completely in Go.
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how to JSON Marshal a struct if one of its fields is a fucntion
If you want to serialize a function to JSON one idea may be to embed a scripting language like JavaScript into your program. The goja package is a very good solution: a native ES5 JavaScript (with some ES6 syntax support as well) natively implemented in Go so you can get tight data bindings to your Go types and funcs. For your JSON marshalling you could serialize a JavaScript function source (text) and when reloading that, parse that text with goja to be able to run it dynamically in your Go program. Basically you'd need to get away from pure Go for this and towards something that is JSON compatible to (de)serialize to text.
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Anyone experienced in golang ssr?
Not really. It was built in-house and I don't know of anything about it that went public. I recall it using Goja for the JS runtime. Code was embedded into the binary (think embed package). There was some kind of sorcery to convert what would be HTTP network calls in the browser into local function calls during SSR, but I'm hazy on how it worked I'm afraid.
gopher-lua
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Go performance from version 1.0 to 1.22
Would be neat to see graph of recent versions with linear scale
I checked, they use switch on opcodes in vm.go. So would expect a recent improvement, but probably only <5%, & I didn't look close enough to see if awk is one of those languages where instruction dispatch matters less (like how APL tends to avoid issues since array ops avoid having dispatch in tight loops, or how Python avoids instruction dispatch overhead when using numpy)
For VMs Go had a problem for large switch statements: it would always use binary search instead of a jump table. This caused gopher-lua & go-lua to both take the route of having an array of functions which they call on to dispatch instead
A couple years ago this was fixed: https://go-review.googlesource.com/c/go/+/357330
I measured a small perf improvement switching gopher-lua to switch: https://github.com/yuin/gopher-lua/pull/479
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Jacobin: Minimal JVM written in Go and capable of running Java 17 classes
Not the parent but there are several high quality native (meaning no CGO) Lua implementations for Go and it's a great choice if you want an embedded scripting language:
https://github.com/yuin/gopher-lua
- Are there any Golang Lua VMs that support snapshotting/serializationi?
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Using external Lua libraries in an app with embedded Lua
The "game" was just an example, what I'm exactly trying to do is creating a plugin system for my go app using gopher-lua. The thing is the app will be used by end users and I can't ask them to install libraries. ATM, I don't care about libs with external dependencies like openssl, zlib etc. supporting just the pure Lua ones is enough
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Show HN: Supershields.io – smart, Lua-powered SVG status badges
I'm generally using Visual Studio Code for all my development. Really like it.
I chose https://github.com/yuin/gopher-lua as the Lua engine because it is Golang-based, while the Nginx Lua VM is C, unless I'm mistaken. Using gopher-lua is just easier when I'm working in a Golang project. I only have to work in a single language and dev environment for all the backend work. Makes both development and testing easier.
Moonscript I might have heard of, but I have no experience with it. I did not consider it here, and I would rarely consider any niche scripting language for a solution I want others to use. It just introduces an unnecessary barrier to adoption.
- Lua: Good, Bad, and Ugly Parts
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Show HN: LadyLua, batteries-included static Lua 5.1 interpreter
GopherLua [0] is a Lua implementation written in Go, not just a wrapper around the C implementation.
The main alternative seems to be Shopify’s go-lua [1], given that Microsoft’s golua [2] is no longer being developed. The main difference between these three implementations seems to be the supported Lua version - 5.1, 5.2 and 5.3 respectively.
[0] https://github.com/yuin/gopher-lua
[1] https://github.com/Shopify/go-lua
[2] https://github.com/Azure/golua
What are some alternatives?
otto - A JavaScript interpreter in Go (golang)
go-lua - A Lua VM in Go
v8go - Execute JavaScript from Go
golua - Go bindings for Lua C API - in progress
tengo - A fast script language for Go
go-python - naive go bindings to the CPython2 C-API
go-duktape - [abandoned] Duktape JavaScript engine bindings for Go
cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)