base64 conversion

[a-bawane]

ES5.1 supports atob & btoa. But goja doesn't support this functionality.
Is there other way to achieve base64 conversion. Please let me know.

[Bomberus]

Did not try this myself, but maybe polyfilling helps: https://github.com/MaxArt2501/base64-js/blob/master/base64.js

[ghost]

js= goja.New()
js.Set("btoa", func(call goja.FunctionCall) goja.Value {
	return js.VM.ToValue(base64.RawStdEncoding.EncodeToString([]byte(call.Arguments[0].String())))
})
js.Set("atob", func(call goja.FunctionCall) goja.Value {
	str, _ := base64.RawStdEncoding.DecodeString(call.Arguments[0].String())
	return js.VM.ToValue(string(str))
})

maybe that way?