Is it possible to use callbacks in Pine Script? Something like this:
//@version=5
indicator("Callback")
callackCaller(callback) =>
callback(0)
callbackFunction(value) =>
value
callbackCaller(callbackFunction)
plot(close)
No.
There is no Function argument type in Pine so you cannot pass it as a function parameter.
When thinking about Pine's capabilities, aim a bit below Turbo Pascal to minimize the number of wtf/min.