Question

我正在尝试使用jQuery将通过ajax返回的一些用户名加载到下拉菜单中。结果成功进入下拉菜单，但所有数据只进入一个选项标签。我希望数据在不同的选项标签中。

目前，下拉菜单如下所示

：NAME1，NAME2 NAME3，NAME4

但我想要：

名1

名称2

NAME3

NAME4

下拉我将结果放在哪里：

    <div class="form-group">
    <select name="name" class="form-control" id="employee_select">
</select>
</div>

jQuery的：

    //send value via GET to URL
    var get_request = $.ajax({
      type: 'GET',
      url: '/users',
      data: {User:User}
    });

    // handle response
    get_request.done(function(data){

    // Data returned
    dataReturned = data;

    // Log data
   console.log($.type(dataReturned));   // response is string in the form of
                                         // Name1
                                         // Name2

   // Convert to an array
   dataArray = [dataReturned]

    // Create a new array
    newArray = [];

// Populate newArray with items
for(i=0;i<dataArray.length;i++){
   if(typeof(dataArray[i])=='string'){
    newArray.push(dataArray[i])
}
}
//console.log(newArray);
console.log($.type(newArray)); // an array is returned in the form of ["Name1,Name2,Name3,Name4"]

// Loop through newArray
$.each(newArray, function( index, value) {
 $('#employee_select').append("<option>"+ value + "</option>");
})

谢谢。

Answer 1

这可能是一种更优雅的方式，但......

如果将每个结果推送到数组中然后在数组检查中的每个项目中运行for循环以查看每个项目是否为字符串，该怎么办？成功的结果是，你进入最后一个阵列。

override func viewDidLoad() {
    super.viewDidLoad()
    initCamera()
}

func initCamera(){
    captureSession.sessionPreset = .medium

    guard let device = AVCaptureDevice.default(for: .video) else {
        print("no camera")
        return
    }
    try? device.lockForConfiguration()
    device.activeVideoMaxFrameDuration = CMTimeMake(1, 30)
    if device.hasTorch && device.isTorchAvailable && !device.isTorchActive{
        do {
            try device.setTorchModeOn(level: 1.0)
            device.torchMode = .on
        } catch {
            print("Torch could not be used")
        }
    } else {
        print("Torch is not available")
    }
    if device.isFocusModeSupported(.continuousAutoFocus){
        device.focusMode = .continuousAutoFocus
    }
    device.unlockForConfiguration()

    guard let captureInput = try? AVCaptureDeviceInput(device: device) else {return;}

    if captureSession.canAddInput(captureInput) {
        captureSession.addInput(captureInput)
    }

    let previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
    view.layer.addSublayer(previewLayer)

    let videoOutput = AVCaptureVideoDataOutput()
    let queue = DispatchQueue(label: "queue image delegate", attributes: .concurrent)
    videoOutput.setSampleBufferDelegate(self, queue: queue)
    if captureSession.canAddOutput(videoOutput)
    {
        captureSession.addOutput(videoOutput)
    }
    captureSession.startRunning()
}

将数组中的项填充到不同的选项标记中

1 个答案: