Question

你好我试图调用函数＆＃34; tryToGetData＆＃34;在promise中使用递归函数，这样它就可以传递给我另一个不同的随机值，以便继续尝试获得成功＆＃34;至少响应，直到计数器设置为5，如果不打印，则无法加载HTML＆＃39;。

但问题是，一旦我得到随机值，看起来无论我多少次调用该函数来检索另一个随机值，它总是与您在下面看到的值相同。

首先，这是我的代码：

＆＃13;

var a = ['unsuccessful', 'success'];
var randomValue = a[Math.floor(a.length * Math.random())];
let statuscounter= 0;

Promise.resolve(randomValue)

.then((value) => {
    console.log(value)
    return value
})
.then(function tryToGetData(status) {

  if (status !== "success" && statuscounter <= 5) {
      console.log('First attempt');

      statuscounter +=1
      return tryToGetData(randomValue)

  } else if(status !== "success" && statuscounter > 5){
      console.log('Unable to load HTML');
      return false;
  }else{
    console.log('HTML loaded, wait to load resources');
  }
})
.catch(error => reject(err));

＆＃13;

如果我作为随机值不成功，这是输出：

"unsuccessful"
"First attempt"
"First attempt"
"First attempt"
"First attempt"
"First attempt"
"First attempt"
"Unable to load HTML"

虽然我想要的是例如：

"unsuccessful"
"First attempt"
//call the function again and in that case I'll get "success" as randomvalue:
"success"
"HTML loaded, wait to load resources"

递归承诺中的随机值总是相同的

0 个答案: