小编Gau*_*Ram的帖子

Angular 2谷歌地图实施

我是新来的角2.我想使用谷歌地图API的服务方向和实施中所示的例子https://developers.google.com/maps/documentation/javascript/examples/directions-simple到我的项目,如图下面的代码.但由于某种原因,地图没有加载.有人可以帮我弄这个吗？

map.html

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Directions service</title>
    <style>
      html, body {
        height: 500px;
        margin: 0;
        padding: 0;
      }
      #map {
        height: 500px;
      }
      #floating-panel {
        position: absolute;
        top: 10px;
        left: 25%;
        z-index: 5;
        background-color: #fff;
        padding: 5px;
        border: 1px solid #999;
        text-align: center;
        font-family: 'Roboto','sans-serif';
        line-height: 30px;
        padding-left: 10px;
      }
    </style>
  </head>
  <body>        
    <div id="floating-panel">
    <b>Start: </b>
    <select id="start">
      <option value="chicago, il">Chicago</option>
      <option value="st louis, mo">St Louis</option>
      <option value="joplin, mo">Joplin, MO</option> …

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google-maps google-maps-api-3 angular2-template angular

Gau*_*Ram

lucky-day

8
推荐指数

1
解决办法

2万
查看次数

Angular 2 HTTPS请求

如何从角度2配置和发出https请求？找不到任何资源.可以请有人在这里指导我吗？谢谢.

angular2-services angular2-http angular

Gau*_*Ram

lucky-day

7
推荐指数

2
解决办法

2万
查看次数

迭代Angular 2中的一组对象

我有一个从json文件服务文件中收到的对象数组.当我在组件中订阅它并尝试迭代它时,我收到以下错误:

EXCEPTION: Error in app/dashboard/features/fleet/fleetControlPanel/fleetControlPanelTemplate.html:38:14BrowserDomAdapter.logError @ browser_adapter.ts:78BrowserDomAdapter.logGroup @ browser_adapter.ts:89ExceptionHandler.call @ exception_handler.ts:53(anonymous function) @ application_ref.ts:304schedulerFn @ async.ts:131SafeSubscriber.__tryOrUnsub @ Subscriber.ts:240SafeSubscriber.next @ Subscriber.ts:192Subscriber._next @ Subscriber.ts:133Subscriber.next @ Subscriber.ts:93Subject._finalNext @ Subject.ts:154Subject._next @ Subject.ts:144Subject.next @ Subject.ts:90EventEmitter.emit @ async.ts:117NgZone._zoneImpl.ng_zone_impl_1.NgZoneImpl.onError @ ng_zone.ts:138NgZoneImpl.inner.inner.fork.onHandleError @ ng_zone_impl.ts:90ZoneDelegate.handleError @ zone.js:327Zone.runGuarded @ zone.js:233NgZoneImpl.runInnerGuarded @ ng_zone_impl.ts:100NgZone.runGuarded @ ng_zone.ts:216outsideHandler @ dom_events.ts:16ZoneDelegate.invokeTask @ zone.js:356Zone.runTask @ zone.js:256ZoneTask.invoke @ zone.js:423
EXCEPTION: TypeError: Cannot read property 'length' of undefined

TypeError: Cannot read property 'length' of undefined
        at FleetSummaryComponent.ngOnChanges (fleetSummaryComponent.ts:62)
        at DebugAppView._View_FleetControlPanelComponent2.detectChangesInternal (FleetControlPanelComponent.template.js:755)
        at DebugAppView.AppView.detectChanges (view.ts:243)
        at DebugAppView.detectChanges (view.ts:345)
        at …

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loops observable angularjs angular2-services angular

Gau*_*Ram

lucky-day

5
推荐指数

1
解决办法

3万
查看次数