watch a variable ?

[espruino-discuss]

Posted at 2020-01-31 by JumJum

Is there a way to have something like setWatch on a variable?
AFAIK, its working for Pins only.
Options comin to my mind are:

• extend setWatch function and watcharray handling in jsiIdle
• use GPIOs which are not wired, sounds crazy, but you never know

[gfwilliams]

Posted at 2020-01-31 by @gfwilliams

There is a way, yes - you can use getters and setters :) Just use Object.defineProperty to create the variable, then add the getter and setter functions that you want... http://www.espruino.com/Reference#l_Object_defineProperty