depend on type judgment.
Supports the method chain, which makes the code more fluid to write.
In the penultimate chapter, there is one more chapter to be finished. Although the content of this chapter is not much, I seem to be struggling with these chapters because I can't find the focus. How much of the code directly determines the degree of understanding of the article, this chapter can be written in some code back and then look again and again, after mastering the ability to become
Javascript API is a new API framework of ArcGIS Server 9.3. It provides a lightweight solution for creating a WebGIS application. On the client side, it uses the services provided by ags, map applications and geographic functions can be implemented.
Remember that in the ArcIMSBlueviewer sample framework, all operations in the Framework are implemented based on t
HTML 5 is the 5th major version of the World Wide Web core language, launched in 2004 by the network Rich Text Technology Working Group (WHATWG). While standards are still in the works, some browsers have been able to support some of the features of HTML 5, such as Safari 4 beta;51cto.com reported last week about Apple's preemptive support for HTML5 video features. Today we're going to look at the progress of HTML5 in terms of support and substitution for Ja
Using CORS to Use API applications from JavaScript, corsapi
The Application Service provides built-in cross-origin Resource Sharing (CORS) support, allowing JavaScript clients to call APIs hosted in API applications across domains. Application Service allows you to configure CORS access to APIs without writing any code
ArcGIS API for JavaScript development environment setup and first instance demoESRI has released the latest ArcGIS Server for JavaScript API v3.9 so far, which provides richer and more powerful functions.
I. Preparations before installation
1. download the latest "ArcGIS Server for
2011-2-5
ESRI javascript API
There are two ways to reference ESRI JavaScript APIs
1. Online Reference
2 offline reference
Download the ArcGIS Javascript. API offline package and deploy it as instructed.
ArcGIS API
The new APIs available in modern browsers tend to be more mobile apps than traditional desktop apps, such as JavaScript geographic information APIs. Another JavaScript API for mobile apps is the vibration (vibration) API. Obviously, the API is to allow mobile programmers to
1. First get Baidu JavaScript APIFirst open the http://api.map.baidu.com/api?v=1.3 as shown in the browserWhere http://api.map.baidu.com/getscript?v=1.3key=services=t=20121108061854 this link is the API file we're looking for,Also open it in the browser and save it as "Apiv1.3.min.js"and Baidu map must be some of the controls, cursors, logos and other pictures ar
Ecmascript5 provides a series of new API interfaces, which are supported in most of the new browsers, including ie9, chrome, and firfor, A small number of APIs are not supported by all browsers. The following content only describes most of the supported APIs. With the new API, we can design very reliable classes and maintain the original JavaScript style.
Ecmascr
Author: flyingis
ArcGIS Server has become the core product of ArcGIS. Javascript/flex API brings great convenience and shocking user experience to GIS application development, however, it seems that the process of setting up and making great contributions to the ArcGIS Server will gradually fade out of sight, it must be whether the ADF will be replaced by JavaScript
Today, I would like to introduce you to the W3C selector API, an exciting step in the DOM scripting field. So far, if you want to obtain HTML elements from the DOM using the dom2 API, you can only use document. getelementbyid, or use document. getelementsbytagname for manual filtering. With the popularization of CSS, JavaScript developers keep raising an obvious
(gbrowseriscompatible ()){
// Start creating and operating the map
} Else {
// Define your handling of this exception here if necessary
}
Of course, in your own code, you still need to implement compatible code for different browser environments. Here gbrowseriscompatible () it only ensures that the map API class library runs in its compatible environment.
4. register the Google map API key of the website
The examples in this article describe the common API functions for JavaScript string objects. Share to everyone for your reference, specific as follows:
1. Concat (str1,str2,)
Connection string
2. IndexOf (Str,start)
Returns the position of the first occurrence of STR in a string
var str = "Hello world";
Str.indexof ("Hello"); 0
str.indexof ("O", 5);//7
Str.indexof ("World");//-1
3. LastI
Original: Arcgis for Javascript API similar to Baidu search for a, B, C, D marker Implementation modeMore useless, first put two pictures to let us see the specific effect:Figure 1, Baidu map search resultsFigure 2, the effect of Arcgis for JavaScript implementationSee the effect, is not everyone a little chicken move, is not also spoil the move, there is wood? B
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 map
Detailed description of the file upload API in JavaScript, javascriptapi
For Web programmers, processing file uploads on webpages is always a very troublesome task. In the past, we were not able to upload images by dragging images, nor did we have complicated Ajax upload techniques. We seldom processed batch uploads of multiple files. We cannot obtain the information during the upload process, unless it is
JavaScript uses the HTML file API to read files, noting that "read" is read-only and does not take the initiative to get a list of files from the host on which the browser resides. HTML5 in Fileapi mainly have FileUpload, File,FileList,fileerror,Blob,filereader,datatransfer. Here the main test file. It is therefore necessary to give a test target I. FileUploadis the essence of fileinputhtml4.01 and XHTML
Document directory
Use setTimeout to delay function execution
Use clearTimeout to cancel an execution plan
Develop and cancel repeated execution plans for Functions
Use process. nextTick to delay function execution to the next round of the event Loop
Congestion event Loop
Exit event Loop
Use setTimeout instead of setInterval to ensure the serialization of function execution
For the list of articles in this series and the translation progress, see Node. js advanced programming: using
One of the most common features in many JavaScript libraries is the selection of DOM elements that match a pattern based on CSS selectors. Previously, because of the low understanding of JavaScript, the JavaScript-to-dom operation remained on getElementById () and getElementsByTagName, and the acquisition of classes had to forcibly encapsulate a function, such as
Although most of the time your JavaScript interaction will be described by using a DataTable initialization object as part of using this site, sometimes you will find it useful for some external control tables. You can use the following functions from jquery. A DataTable object. There are also some plug-in API functions available that extend the functionality of the DataTable built-in functions that describ
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