Property 'console' doesn't exist

[gxanshu]

Bug Description

• [ ] I have run gradle clean and confirmed this bug does not occur with JSC

Hermes version: 0.11.0 React Native version (if any): OS version (if any): zorin os 16 lite (based on ubuntu 20.04) Platform (most likely one of arm64-v8a, armeabi-v7a, x86, x86_64): x86_64

Steps To Reproduce

1. just build hermes from the repo
2. test hermes command with some javascript code

code example: console.log("Hemes works!");

The Expected Behavior

Hermes Works

Screenshot

[neildhar]

Hi @aianshume, console is not a built-in in JavaScript. Hermes does not provide a console.log function, it is provided by React Native or any other Hermes integrator.

If you'd like to run the Hermes executable directly, you should be able to use the print function to print things to the console.

[gxanshu]

Hi @aianshume, console is not a built-in in JavaScript. Hermes does not provide a console.log function, it is provided by React Native or any other Hermes integrator.

If you'd like to run the Hermes executable directly, you should be able to use the print function to print things to the console.

nice one thank you

[melroy89]

That is funny, since JS/TS runtimes like Node.js or Bun do know about console.

I believe Herman should create a simple wrapper, so all console.* calls will become print()

[tmikov]

@melroy89 absolutely, runtimes should provide an implementation of console. However Hermes is not a runtime like NodeJS or a Bun, it is a JS engine like v8 or JSC.

It would be convenient to add an implementation of console to the hermes tool.