constmap=newMap([['name','Alice'],['age',30],['city','New York']]);// 使用 forEach 遍历map.forEach((value,key)=>{console.log(`Key:${key}, Value:${value}`);});// 使用 for...of 遍历for(const[key,value]ofmap){console.log(`Key:${key}, Value:${value}`);} 1. 2. ...
It's an object with key-value pairs where value is a string. The layer's refresh() method needs to be called if the customParameters are updated at runtime. Example // send a custom parameter to your special service let layer = new MapImageLayer({ url: serviceUrl, customParameters: {...
Map thumbnailUrl String|null|undefined The URL to the thumbnail used for the web scene. WebScene version String The latest supported webscene spec version. WebScene widgets Widgets|null|undefined The widgets object contains widgets that are exposed to the user. WebScene Property Details allLayers ...
const deepFlatten = arr => [].concat(...arr.map(v => (Array.isArray(v) ? deepFlatten(v) : v))); deepFlatten([1, [2], [[3], 4], 5]); // [1,2,3,4,5] 13.difference:寻找差异(并返回第一个数组独有的) 此代码段查找两个数组之间的差异,并返回第一个数组独有的。 const d...
Note that Expr and Stmt do not inherit from ControlFlowNode at the CodeQL level, although their entity types are compatible, so you can explicitly cast from one to the other if you need to map between the AST-based and the CFG-based program representations. There are two kinds of ...
{ "title": "Node 2.2", "key": "4" } ] } ] }); }); </script> </head> <body> [...] <!-- show tree --> <div id="tree">...</div> [...] </body> 运行结果为 如果将以上的body换为 <body> [...] <!-- show tree --> ...
mapModule; private IJSObjectReference? mapInstance; protected override async Task OnAfterRenderAsync(bool firstRender) { if (firstRender) { mapModule = await JS.InvokeAsync<IJSObjectReference>( "import", "./mapComponent.js"); mapInstance = await mapModule.InvokeAsync<IJSObjectReference>( "add...
flatMap()Maps all array elements and creates a new flat array forEach()Calls a function for each array element from()Creates an array from an object includes()Check if an array contains the specified element indexOf()Search the array for an element and returns its position ...
The JavaScript framework benchmarks also supports a wide range of charts, area, pie, bar and column charts, and D3 visualizations, such as treemaps and heatmaps, for creating data-intensive web apps. Ext JS offers one of the fastest and most efficient JS data grids. The robust grid is...
$.isWindow(object) ⇒ boolean True if the object is a window object. This is useful for iframes where each one has its own window, and where these objects fail the regular obj === window check.$.map $.map(collection, function(item, index){ ... }) ⇒ collection Iterate thro...