1回答

• 

  shenhx

  2018-04-15 18:44:13

  var arr = new Array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h');

  function func(aInx, bInx) {

  //console.log(aInx + '-' + bInx);

  if ((arr.length - aInx < 5) || (bInx + 4) > arr.length) {

  //return;

  if ((aInx + 4) > arr.length) {

  return;

  }

  if((bInx + 4) > arr.length){

  //console.log(bInx);

  aInx++;

  bInx = aInx+1;

  func(aInx, bInx);

  return;

  }

  }

  var obj2 = arr.slice(aInx, aInx + 1).concat(arr.slice(bInx, bInx + 4)).join();

  console.log(obj2);

  bInx++;

  func(aInx, bInx);

  }

  func(0, 1);

  
  

  0 0