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如何将外部职能从内部职能转回来?
原标题:How to call outer function s return from inner function?

我有这样的法典:

function allValid() {
    $( input ).each(function(index) {
        if(something) {
            return false; 
        }    
    });

    return true;
}

始终如一地以<条码>退回错误;影响匿名内部功能。 难道可以轻松地把外事叫回?

<>PS> 我不想寻找工作,只是想知道对原始问题的答复。 如果答案是“不可能”的,则罚款。

最佳回答

Yeah将其存放在当地的一个变数中。

function allValid() {
  var allGood = true;
  $( input ).each(function (index) {
    if (something) {
      allGood = false;
    }
  });

  return allGood;
}
问题回答

也可以通过过滤器这样做:

var anyInvalid = $( input ).filter(function(index) {
  if (inValidCheck)
    return true;
}).length;

这样做是因为0被视为不实,但实际上使你丧失能力,你可以借此显示“你有3个无效的条目”,或者如果你想要的话。

如果你想高效地做到这一点,我认为这是最好的办法:

function allValid() {
  elements = $( input )
  for (i = 0; i < elements.length; i++) { invalidityCheck(elements[i]) && return false; }
  return true;
}

<><>Edit>: 虽然越多的 Java本版本可能使用例外情况:

function allValid() {
  try
    $( input ).each(function(index)) {
      if (something) { throw  something happened! ; }
    });
  catch (e) {
    if (e ==  something happened! ) {
      return false;
    } else {
      throw e;
    }
  }
  return true;
}




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