https://github.com/jvatic/goja-babel

Run babel transforms using Go to transpile your modern JavaScript and JSX.
https://github.com/jvatic/goja-babel

babel golang javascript react

Last synced: 1 day ago
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Run babel transforms using Go to transpile your modern JavaScript and JSX.

• Host: GitHub
• URL: https://github.com/jvatic/goja-babel
• Owner: jvatic
• License: bsd-3-clause
• Created: 2017-02-22T00:05:06.000Z (almost 8 years ago)
• Default Branch: main
• Last Pushed: 2024-10-24T12:18:17.000Z (3 months ago)
• Last Synced: 2024-10-25T12:41:21.736Z (3 months ago)
• Topics: babel, golang, javascript, react
• Language: Go
• Homepage:
• Size: 24.2 MB
• Stars: 60
• Watchers: 6
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
goja-babel

==========

[![CI](https://github.com/jvatic/goja-babel/actions/workflows/ci.yml/badge.svg)](https://github.com/jvatic/goja-babel/actions/workflows/ci.yml)

Uses github.com/dop251/goja to run babel.js within Go.

## Usage

```go

package main

import (

	"fmt"

	"io"

	"os"

	"strings"

	"github.com/jvatic/goja-babel"

)

func main() {

	babel.Init(4) // Setup 4 transformers (can be any number > 0)

	res, err := babel.Transform(strings.NewReader(`let foo = 1;

	


		Hello JSX!

		The value of foo is {foo}.

	
`), map[string]interface{}{

		"plugins": []string{

			"transform-react-jsx",

			"transform-block-scoping",

		},

	})

	if err != nil {

		panic(err)

	}

	io.Copy(os.Stdout, res)

	fmt.Println("")

}

```


```js

$ go run main.go

var foo = 1;

/*#__PURE__*/

React.createElement("div", null, "Hello JSX! The value of foo is ", foo, ".");

```

## Benchmarks

```

go test -bench Transform -benchmem

goos: darwin

goarch: amd64

pkg: github.com/jvatic/goja-babel

cpu: Intel(R) Core(TM) i7-3615QM CPU @ 2.30GHz

BenchmarkTransformString-8                    	      81	  15642708 ns/op	 3069085 B/op	   37243 allocs/op

BenchmarkTransformStringWithSingletonPool-8   	      67	  15820676 ns/op	 3070920 B/op	   37244 allocs/op

BenchmarkTransformStringWithLargePool-8       	      78	  15497562 ns/op	 3070015 B/op	   37243 allocs/op

PASS

ok  	github.com/jvatic/goja-babel	4.993s

```