代码语言:javascript 代码运行次数:0 运行 AI代码解释 constwm=newWeakMap();constele=document.getElementById('example');wm.set(el,'some information');wm.get(el)//"some information" 「场景2:当我们想要为DOM元素添加事件监听时,可使用WeakMap。」 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /...
Example // Create a Map constfruits =newMap([ ["apples",500], ["bananas",300], ["oranges",200] ]); Try it Yourself » Map.get() You get the value of a key in a map with theget()method Example fruits.get("apples"); ...
Since: ArcGIS Maps SDK for JavaScript 4.6 Refresh interval of the layer in minutes. Value of 0 indicates no refresh. Default Value:0 See also refresh() refresh event Example // the layer will be refreshed every minute. layer.refreshInterval = 1; sourceJSON Property sourceJSON Object |null...
This example creates a map with no slider or pan arrows. require([ "esri/map", ... ], function(Map, ... ) { var map = new Map("mapDiv", { slider:false, nav:false }); ...}); In this example, graphics are turned off whenever the map is panned. require([ "esri/map",...
代码语言:javascript 代码运行次数:0 运行 AI代码解释 /// 代码设置MappublicclassStaticMapConfig{publicstaticvoidmain(String[]args){MapConfig mapConfig=newMapConfig();mapConfig.setName("cacheMap")// 设置Map名称.setInMemoryFormat(InMemoryFormat.BINARY)// 设置内存格式.setBackupCount(1);// 设置副本...
Variable label placement Use text-variable-anchor to allow high priority labels to shift position to stay on the map. Visualize population density Use a variable binding expression to calculate and display population density. Was this example helpful?YesNo ...
The keys(), values(), and entries() methods all return a MapIterator, which is similar to an Array in that you can use for...of to loop through the values. Here is another example of a Map, which we can use to demonstrate these methods. Copy const map = new Map([ [1970, '...
If zoom is not specified in the constructor options, Mapbox GL JS will look for it in the map's style object. If it is not specified in the style, either, it will default to 0 . Example const map = new mapboxgl.Map({ container: 'map', center: [-122.420679, 37.772537], zoom:...
Since layers in Mapbox GL JS are remote, they are asynchronous. So code that connects to Mapbox GL JS often uses event binding to change the map at the right time. For example: map.on('load',()=>{ map.addLayer({ id:'terrain-data', ...
Send input via stdin and use--decode,--encode,--toGeoJSON, or--fromGeoJSONflags. If omitted will default to--decode. Example : Releases3 1.2.1Latest Sep 14, 2023 Packages No packages published Contributors21 + 7 contributors Languages JavaScript99.7% Makefile0.3%...