javascript mind map

The default object representation of JavaScript {} can be thought of as a map or dictionary data structure in other languages, a set of key-value pairs.But the JavaScript object has a small problem, that is, the key must be a string , but actually number or other data type as a key is also very reasonable.Map is the structure of a set of key-value pairs with extr

This is the last new version before version 2.0, with many new features, one of which is to support the source Map. Access Http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js, open the compressed version, scroll to the bottom, you can see the last line is like this: @ sourcemappingurl=jquery.min.map This is the source Map. It is a separate map file

[Javascript] (function () {window [ amp; #39; XR amp; #39;] {}; varmidContainernewArray (); varmapContainernewArray (); varMAPID0; functionMap (mid ){... syn [javascript] (function () {window ['xr '] = {}; var midContainer = new Array (); var mapContainer = new Array (); var MAPID = 0; function Map (mid) {var type = typeof (mid); if (type! = "String") (type! =

This article introduces the use of JavaScript to achieve a simple map, you can get the map, judge, delete, add, and so on, interested friends can understand the next nbsp; Code as follows:/*nbsp; * Map object, realize map function nbsp; *nbsp; * Interface:nbsp; * size () G

Learn how to create an immutable.map () through plain Javascript object construction and also via array tuples.console.clear (); // Can is an object var map = Immutable.map ({key: "value"}); Console.log (Map.get (//"value"// Can is an arrayvar map = Immutable.map ([["Key", {"name": "Zhentian"}]]); Console.log ( Map.get (//"Zhentian"// size prop//1Mocha.setup ('

I got a Baidu map to mark the geographical location information and obtained the address through Baidu api. This map api is a javascript version. If you are interested, you can understand it. It may be helpful to you. Sometimes some things are not recorded, but when you look at it for a while, I will forget it. You need to read it again. Baidu

, - NewEsri.symbol.SimpleLineSymbol (Esri.symbol.SimpleLineSymbol.STYLE_DASHDOT, + NewDojo. Color ([0,0,255]), 2), NewDojo. Color ([255,255,0,0.5])); A at EsriConfig.defaults.map.zoomSymbol=Zoomsymbol.tojson (); - varMap= NewESRI. Map ("Map", {nav:false}); - varLayer= NewEsri.layers.ArcGISTiledMapServiceLayer ("Http://server.arcgisonline.com/ArcG

) = = { //Suppress event bubblingConst Oevent = e | |event; Oevent.cancelbubble=true; //Delete other Poiinfowindowmarker //get all the overlays on the map Const Alloverlay = This._map.getoverlays (); For (const item of Alloverlay) {if (item instanceof Poiinfowindowmarker) { this . _map.removeoverlay (item); }} Const Poiinfowindowmarker=N

add Overflow:hidden, you can cover the picture. In this program in order to click near the border can make the map move, I used four div press the picture four edges, when the border is clicked near, is equal to point Div, Point Div will mobilize the corresponding function. This may be a bit of a bad technique, but it's also a good idea. Another point to note is that when you click the function near the border, I use a very special way to keep the

of degrees *@paramlat Latitude ddmm.mmmm *@paramlon Longitude Dddmm.mmmm *@return */ Public Static Double[] dufen2du (String lat, string lon) {DoubleLatd=double.parsedouble (lat.substring (0, 2)); DoubleLatm=double.parsedouble (Lat.substring (2)); DoubleLatnew=latd+latm/60; DoubleLond=double.parsedouble (lon.substring (0, 3)); DoubleLonm=double.parsedouble (Lon.substring (3)); DoubleLonnew=lond+lonm/60; return New Double[] {latnew, lonnew}; }}Finally see the results of the proje

. SceneviewIn the same way, give the full HTML code:DOCTYPE HTML>HTML>Head>MetaCharSet= "Utf-8">Metaname= "Viewport"content= "initial-scale=1, maximum-scale=1, User-scalable=no">title>Get started with sceneview-create a 3D maptitle>style>html, body, #viewDiv{padding:0;margin:0;Height:100%;width:100%; }style>Linkrel= "stylesheet"href= "Https://js.arcgis.com/4.2/esri/css/main.css">Scriptsrc= "HTTPS://JS.ARCGIS.COM/4.2/">Script>Script>require (["Esri/map