// Optional: subscribe to map capability changes.map.addListener('mapcapabilities_changed',()=>{constmapCapabilities=map.getMapCapabilities();if(!mapCapabilities.isAdvancedMarkersAvailable){// Advanced markers are *not* available, add a fallback.}});
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC)：2025-08-17。"],[[["\u003cp\u003eGet started with advanced markers by obtaining an API key, enabling the Maps JavaScript API, and creating a map ID.\u003c/p\u003e\n"],["\u003cp\u003eUpdate your map initialization code to include loading the advanced markers library and providing a map ID when instantiating the map.\u003c/p\u003e\n"],["\u003cp\u003eFor testing purposes, use \u003ccode\u003eDEMO_MAP_ID\u003c/code\u003e as the map ID or utilize the provided example code, but replace the example map IDs for production.\u003c/p\u003e\n"],["\u003cp\u003eOptionally, check map capabilities to ensure advanced markers are available or to implement a fallback if they are not supported.\u003c/p\u003e\n"]]],["To use advanced markers, you need a Cloud project with a billing account and the Maps JavaScript API enabled. First, obtain an API key and create a map ID, selecting JavaScript as the map type with either Vector or Raster options, or using `DEMO_MAP_ID` for testing. Update your map initialization code by loading the Maps JavaScript API and the advanced markers library. Instantiate the map with the created or demo map ID. Optionally, use a listener to check map capabilities.\n"],null,["Select platform: [Android](/maps/documentation/android-sdk/advanced-markers/start \"View this page for the Android platform docs.\") [iOS](/maps/documentation/ios-sdk/advanced-markers/overview \"View this page for the iOS platform docs.\") [JavaScript](/maps/documentation/javascript/advanced-markers/start \"View this page for the JavaScript platform docs.\")\n\n\u003cbr /\u003e\n\nFollow these steps to get set up with advanced markers.\n\nGet an API key and enable the Maps JavaScript API\n\nBefore using advanced markers, you need a Cloud\nproject with a billing account, and the Maps JavaScript API\nenabled. To learn more, see [Set up your Google Cloud project](/maps/documentation/javascript/cloud-setup).\n\n[Get an API key](/maps/documentation/javascript/get-api-key)\n\nCreate a map ID\n\nTo create a new [map ID](/maps/documentation/get-map-id), follow the steps in\n[Cloud customization](/maps/documentation/javascript/maps-customization-overview).\nSet the Map type to **JavaScript** , and select either the **Vector** or\n**Raster** option.\n| **Important:** For testing, you can skip the step of creating and configuring a map ID, by using `mapId: 'DEMO_MAP_ID'` in your app code.\n\nUpdate your map initialization code\n\nThis requires the map ID you just created. It can be found on your [Maps\nManagement](https://console.cloud.google.com/google/maps-apis/studio/maps) page.\n\n1. [Load the Maps JavaScript API](/maps/documentation/javascript/load-maps-js-api).\n\n2. Load the advanced markers library from within an `async`\n function when needed:\n\n ```javascript\n const { AdvancedMarkerElement } = await google.maps.importLibrary(\"marker\") as google.maps.MarkerLibrary;\n ```\n3. Provide a map ID when you instantiate the map using the `mapId` property.\n This can be a map ID that you provide, or `DEMO_MAP_ID`.\n\n ```javascript\n const map = new\n google.maps.Map(document.getElementById('map'), {\n center: {lat: -34.397, lng: 150.644},\n zoom: 8,\n mapId: 'YOUR_MAP_ID'\n });\n ```\n\n| **Caution:** The example maps for advanced markers use map IDs that are linked to a reduced-POI map style. If you re-use example code, we recommend replacing these map IDs with `DEMO_MAP_ID`, or with your own map ID.\n\nCheck map capabilities (optional)\n\nAdvanced markers requires a map ID. If the map ID is missing,\nadvanced markers cannot load. As a troubleshooting step,\nyou can add a `mapcapabilities_changed` listener to subscribe to map capability\nchanges. Using Map Capabilities is optional, and recommended only for testing\nand troubleshooting purposes, or for runtime fallback purposes. \n\n```javascript\n// Optional: subscribe to map capability changes.\nmap.addListener('mapcapabilities_changed', () =\u003e {\n const mapCapabilities = map.getMapCapabilities();\n\n if (!mapCapabilities.isAdvancedMarkersAvailable) {\n // Advanced markers are *not* available, add a fallback.\n }\n});\n```\n\nNext steps\n\n[Create a default advanced marker](/maps/documentation/javascript/advanced-markers/add-marker)"]]
