Question

所以我做了网站刮刀，我想在这个请求函数中使用其他函数中的字符串，但我不能回复它。我不确定管道是如何工作的。

request(realAnswer, function (error, response, html) {

  if (!error && response.statusCode == 200) {
    var $ = cheerio.load(html);
    var tree = $('.qa-answer-field');
    var final = tree.children().eq(1).text();//i want to use this final as a sting in other fucntion

  }

}).pipe(final);

这个解决方案工作正常，但我只能在控制台中写出我的结果......

  request(realAnswer, function (error, response, html) {

      if (!error && response.statusCode == 200) {
        var $ = cheerio.load(html);
        var tree = $('.qa-answer-field');
        var final = tree.children().eq(1).text();
          if(final) 
            console.log("Response:  \n"+final);
          else
            console.error("Response doesnt exist!");
      }

    });

那么有人可以帮我解决我的问题吗？

Answer 1

Crashlytics crashlyticsKit = new Crashlytics.Builder()
          .core(new CrashlyticsCore.Builder().disabled(true).build())
          .build();
  Fabric.with(this, crashlyticsKit);

或者你可以使用像

这样的对象字符串

  var usemepls = 'fake'
  request(realAnswer, function (error, response, html) {

      if (!error && response.statusCode == 200) {
        var $ = cheerio.load(html);
        var tree = $('.qa-answer-field');
        var final = tree.children().eq(1).text();
          if(final) 
            console.log("Response:  \n"+final);
            usemepls = final.toString() // <-- if you dont want a string just replace the .toString()
          else
            console.error("Response doesnt exist!");
      }

    })

    console.log('usemepls: ' + usemepls)

或者您可以使用功能

  var usemepls = {}
  request(realAnswer, function (error, response, html) {

      if (!error && response.statusCode == 200) {
        var $ = cheerio.load(html);
        var tree = $('.qa-answer-field');
        var final = tree.children().eq(1).text();
          if(final) 
            console.log("Response:  \n"+final);
            usemepls.test1 = final.toString() // <-- if you dont want a string just replace the .toString()
          else
            console.error("Response doesnt exist!");
      }

    })

    console.log('usemepls.test1: ' + usemepls.test1)

你应该更多地了解javascript / node.js的基础知识。它会让你更轻松。

如何从node.js中的请求函数返回

1 个答案: