appendFunction static method

String appendFunction(
  1. String key,
  2. Function callback,
  3. Map<String, Map<String, Function>> functions
)

Implementation

static String appendFunction(String key,Function callback,Map<String,Map<String,Function>> functions){
  String id=generateRandomId();
  if(!functions.containsKey(key)){
    functions[key]={};
  }
  functions[key]![id]=callback;
  return id;
}