Function doUntil

doUntil(predicateFn: any, actionFn: any, checkInterval: any): void
Repeat a function/lambda until a given predicate function/lambda returns true
Parameters
- predicateFn: any
  A function/lambda to test if the timer should continue. Return True to end the timer, False to continue it
- actionFn: any
  A function/lambda to call until the predicateFn returns true
- checkInterval: any
  How often, in seconds, to call actionFn
Returns void