Question

在满足特定条件之前，我们可以保持“ for”循环执行吗？我在for循环中有一个popup（Alert）。弹出询问用户确认（同意或取消选项）。但是循环不等待条件。基于弹出窗口“同意”或“取消”，我需要继续执行循环。

Answer 1

您可以在这样的异步函数中执行内部确认弹出窗口-

select x.acc_num --into res
from xmltable (
  xmlnamespaces (
      default 'http://www.eubank.kz/Bis.Info.ExternalServices.Bank',
      'http://schemas.xmlsoap.org/soap/envelope/' AS "s",
      'http://www.w3.org/2001/XMLSchema-instance' as "i",
      'http://schemas.microsoft.com/2003/10/Serialization/Arrays' as "a"
  ),
  's:Envelope/s:Body/TryGetCardAccountsResponse/TryGetCardAccountsResult/IbanList/a:string'
  passing xmltype(
  '<s:Envelope
    xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
    <s:Body>
        <TryGetCardAccountsResponse
            xmlns="http://www.eubank.kz/Bis.Info.ExternalServices.Bank">
            <TryGetCardAccountsResult
                xmlns:i="http://www.w3.org/2001/XMLSchema-instance">
                <IbanList
                    xmlns:a="http://schemas.microsoft.com/2003/10/Serialization/Arrays">
                    <a:string>KZ199480018A00166666</a:string>
                    <a:string>KZ519480061A02366666</a:string>
                </IbanList>
                <Status>Ok</Status>
            </TryGetCardAccountsResult>
        </TryGetCardAccountsResponse>
    </s:Body>
</s:Envelope>'
  )
  columns
    acc_num varchar2(255) path '.'
) x;

另一种替代方法是消除function asyncFunction(i) { return new Promise(resolve => { let response = confirm("Agree for iteration " + i); resolve(response); }); } for (let i = 0; i < 5; i++) { // Wait for the response of the asyncFunction to proceed to next iteration asyncFunction(i).then((response)=>{ console.log(response); // Further processing of the user's response }); }循环，并设置一个递归函数，像这样-

for

Answer 2

您可以使用es6 aync / await概念

_dirname

替代解决方案或保持循环执行直到条件满足

2 个答案: