Line # require source maps - generated on upload - if you do not want to spend memory for every line in the running code. Source map are also useful to solve the problem of code coming from different modules. To handle the display, the editor could be used, but it should then have a multi-document interface. Debuging saved code adds another layer of requirements for infrastructure.
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.
Line # require source maps - generated on upload - if you do not want to spend memory for every line in the running code. Source map are also useful to solve the problem of code coming from different modules. To handle the display, the editor could be used, but it should then have a multi-document interface. Debuging saved code adds another layer of requirements for infrastructure.