javascript - Coffeescript json响应处理

Question

我刚刚开始使用 CoffeeScript 。但是，我必须处理来自 Rails 应用程序的 JSON 响应才能生成谷歌地图标记。如何将 JSON 数据解析到 CoffeeScript 中。

代码如下所示:

  $.ajax '/locations',
          type: 'GET'
          dataType: 'json'
          error: (jqXHR, textStatus, errorThrown) ->
              alert "error"
          success: (data, textStatus, jqXHR) ->
              buses = data

  window.initMap = ->
    map = new google.maps.Map(document.getElementById('map'),
      center:
        lat: 0.324680
        lng: 32.572633
      zoom: 11
    )
  if buses?
    for i in buses
      marker = new google.maps.Marker(position: new google.maps.LatLng(i["latitude"], i["longitude"])
      map: map
      title: i["number_plate"])
      marker.setMap(map)

  loadScript = ->
    script = document.createElement("script")
    script.type = "text/javascript"
    script.src = "https://maps.googleapis.com/maps/api/js?key=xxxxxxxxxxx&callback=initMap"
    document.getElementById('map_scripts').appendChild script
    return

  loadScript()

Json 响应如下所示 {"locations":[{"number_plate":"UAW796N","terminal_number":2,"latitude":"0.4122","longitude":"33.235","速度":"46.0"}]}

Answer 1

您可以使用__ 'locations.number_plate'。