@fanoush thank's very much, it was very usefull. Regarding vsCode, i did what you @Gordon said, but when i clone the repositories , the folder core remains empty and this cause an error when i run the apploader. How can i solve this?
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
https://www.google.com/search?q=espruino+debugger
This result perhaps answers your question
https://www.youtube.com/watch?v=2ODoIpnTDA4