goja
ECMAScript/JavaScript engine in pure Go (by dop251)
expr
Expression language and expression evaluation for Go [Moved to: https://github.com/expr-lang/expr] (by antonmedv)
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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.
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 2024-01-20.
- 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.
expr
Posts with mentions or reviews of expr.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-05-17.
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Solving the Expression Problem in Go
Not diminishing the article at all, there's massive value I've gained from leveraging this runtime solution in multiple projects: https://github.com/antonmedv/expr
The language is easy enough for people to pick-up.
- Expr Release v1.15
- Expr v1.14 release: Go expression language
- Expr – expression language with type checker
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FireScroll - The config database to deploy everywhere (now with conditional statements!)
Uses the [expr](https://github.com/antonmedv/expr) language to achieve this and I've been super happy with the results.
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Library to analyze an arbitrary JSON string
I have been using expr (https://github.com/antonmedv/expr) to do something like this for a while. no complains so far.
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[gcalc] A simple calculater in golang
If you wanted it to not require putting in the operation first and just accept string equations (without using something like https://github.com/antonmedv/expr) you could parse, tokenize and then process the input.
- Go Expression Language
- Polymode: Multiple Major Modes and How to Use SQL and Python in One Buffer
- Expr (Go expression language) releases v1.11
What are some alternatives?
When comparing goja and expr you can also consider the following projects:
otto - A JavaScript interpreter in Go (golang)
govaluate - Arbitrary expression evaluation for golang
v8go - Execute JavaScript from Go
cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)
go-lua - A Lua VM in Go
gval - Expression evaluation in golang
gopher-lua - GopherLua: VM and compiler for Lua in Go
grule-rule-engine - Rule engine implementation in Golang
tengo - A fast script language for Go
go-python - naive go bindings to the CPython2 C-API
mosalat - a rule-engine with custom dsl for golang