function partialAny(fn, ...args){
    return function(...param){
        var a = args.map((el,index) => {
            if(el === undefined){
                return param.shift();
            }
            return el;
        });
        return fn(...a.concat(param));
    }
}


def map = self: Array, index: Int, mapper(t)->t do
	i = index

	while i  < self.len() do
		self(i) = mapper( self(i) )
		i++..

def mapIndex= self: Array, index: Int, mapper(i, t)->t do
	i = index

	while i  < self.len() do
		self(i) = mapper( i, self(i) )
		i++..

function partialAny(fn, ...args) {
    let flag = 0;
    let lastUndefIndex;

  return function(...restArgs){

    if ((flag != 0) && (lastUndefIndex !== undefined) ) {
        args[lastUndefIndex] = restArgs.shift();
      }

    for(let i = 0; i < args.length; i++){

      if (args[i] === undefined){
          args[i] = restArgs.shift();
          flag = 1;
          lastUndefIndex = i;
      }
    }
    return fn(...args.concat(restArgs))
  }
}