For loop API request, how to know which one of the current requests is successful after success

after the circular request, the es6 syntax is not supported, and it is not passed to the server json format. The API will only return the success status without any identification. How to know which array element is passed successfully at the front end. Thank you 

var arr = [{
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "1"
}, {
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "2"
}, {
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "3"
}]

for (var i = 0; i < arr.length; iPP) {
  wx.request({
    url: "https://localhost:8080/trainingRecord/single",
    data: arr[i],
    method: "POST",
    header: {
      "content-type": "application/x-www-form-urlencoded"
    },
    success: function(res) {
      console.log("res", res);
      console.log(this)
    }
  })
}
Javascript
Apr.02,2021 
for (var i = 0; i < arr.length; iPP) {
    (function(){
        var _i=i;
        wx.request({
        ...
        })
    })()
}
var arr = [{
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "1"
}, {
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "2"
}, {
  gymAddr: "00000000",
  trainingActionId: "123",
  deviceId: "3"
}]

for (let i = 0; i < arr.length; iPP) {
  wx.request({
    url: "https://localhost:8080/trainingRecord/single",
    data: arr[i],
    method: 'POST',
    header: {
      'content-type': 'application/x-www-form-urlencoded'
    },
    success: function(res) {
      console.log('res', res);
      console.log(this)
      if(res.status == 200){
          console.log(i)
      }
    }
  })
}
for (let i = 0; i < arr.length; iPP) { // 
  request({
    url: "https://localhost:8080/trainingRecord/single",
    data: arr[i],
    method: 'POST',
    header: {
      'content-type': 'application/x-www-form-urlencoded'
    },
    success: function(res) {
      console.log('res', res, i);
      console.log(this)
    }
  })
}

or: 

for (var i = 0; i < arr.length; iPP) {
 // 
  (function(i){
    request({
        url: "https://localhost:8080/trainingRecord/single",
        data: arr[i],
        method: 'POST',
        header: {
          'content-type': 'application/x-www-form-urlencoded'
        },
        success: function(res) {
          console.log('res', res, i);
          console.log(this)
        }
    })
  })(i)
}

closure or use the index in forEach as the index

Previous: Why is the subsequent code not executed after the gin group request is returned?

Next: How javaWEB development can maximize efficiency.

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu