我对异步瀑布有点问题,因为我想在循环处理的函数之后调用下一个函数。脚本是异步瀑布流的一部分,以前的函数工作得很好。这里唯一的事情是,它有一个用于loop.The代码below.Any帮助将是非常appreciated.Thanks节点js异步回调问题
function(querySize,req)
{
console.log("in second function call :" +querySize);
var temp,title;
for(var counter = 0;counter <= querySize;counter++)
{
websiteAddressArray[counter] = req.query.address[counter];
console.log("for is : " +req.query.address[counter]);
console.log("first line is : " +websiteAddressArray[counter]);
console.log("second line is : " +websiteAddressArray[counter]);
request(websiteAddressArray[counter], function(err, resp, body)
{
$ = cheerio.load(body);
console.log("title is : " +$('title').text());
titleArray[counter] = $('title').text();
});
}
var line="this is string";
callback(null,line);
},
function(callback,line)
{
console.log("line is : " +line)
},
你的回拨在哪里?它是瀑布代码的一半,你可以发布你的async.waterfall代码吗? – abdulbarik
@abdulbarik我编辑了代码。我的回调是下一个功能,它采取行,并简单地打印它 –
什么是控制台打印'console.log(“行是:”+行)'? – abdulbarik