Query is a JavaScript CSS selector engine, compact and powerful, compressed around 2k, can be easily integrated into the code.Support Browser
ie6+, Firefox, Chrome, Safari, Opera
SelectorQuery (Selector[,context])Div#introDiv#intro. RedSpan.red[Name][Name=keywords]Input[name]Input[name=keywords]Input[name= ' keywords ']Input[name= "keywords"]Input[name*=key]Label[class~=red]#nav >li#nav > Li#nav >li#nav >
Main ideas:The key to implementing a paging query is to set the maximum number of data rows and the start line numbers for a page, with the following code:Maximum number of rows we set it to constant, not to dwell on him, so the key is how to set the starting line number to a variable, and let him change as we click on "Previous Page" or "next page".First look at the top-level code:When we click "Next Page", the onclick event is triggered, the startin
returns the current time in locale format. (03/11/99 14:19:22)Parse (date) converts the normal date string to a settime () parameter.
Math ObjectPropertyLN10 (natural logarithm of 10)PI (3.1415926 ...)Sqrt1_2 (square root of 1/2)MethodABS (x) returns the absolute value of XACOs (x) returns the arc cosine value of XASIN (x) returns the arc sin value of xAtan (x) returns the arc tangent value of XCeil (x) returns the smallest integer greater than or equal to XCOS (x) returns the cosine value of
Obtain string parameters in javaScript Query
Function getQueryStringArgs () {// obtain the query string and remove the question mark (var qs = (location. search. length> 0? Location. search. substring (1): ""); // Save the Data Object args ={}; // get each item items = qs. length? Qs. split (""): [], item = null; name = null; value = null; // for loop I = 0; len
Recently, you need to query the coordinates of a location on AMAP. However, AMAP does not provide this function. Fortunately, AMAP provides javascript APIs, So we plan to write a coordinate query tool for ourselves and share it with you here. The Code is as follows:
When used, directly copy the above Code to a text file and save it as html. Open it in a browser
LINQ is an important technology for the. NET platform, full name language integrated Query. By building a quick query statement, you can quickly filter data sets from a database or collection and manipulate memory data in the same way as querying a database. nbsp; nbsp; nbsp; In the ECMAScript 5th version, JavaScript implements a limited, limited LINQ
Objective: To trigger a TABLE query action when a text box on the aspx page loses focus.
1. Add txtInternal. Attributes ["onfocus"] = "MyJsFunc ()" to page_load ()";
2. Add javascript on the page:
...Function MyJsFunc () {var txt = document. getElementById ("txtLotID "). value; PageMethods. myMethod (txt, OnSuccess);} function OnSuccess (value) {document. getElementById ("txtInternal "). innerText = value
This example describes the method for JavaScript query string parameters. Share to everyone for your reference. The implementation methods are as follows:
Copy Code code as follows:
/* Parse query string Returns an object that contains all parameters * *
function Getquerystringargs () {
Gets the query
When querying with query, the following configuration is usedvar querytask = new Esri.tasks.QueryTask (applicationmodelonesearchpoiurl); var query = new Esri.tasks.Query (); Query.geometry = geometry; Query.outspatialreference = map.spatialreference; Query.spatialrelationship = Esri.tasks.Query.SPATIAL_REL_INTERSECTS; Query.returngeometry = true;
JavaScript Query DBpedia Small applicationIn the previous article, we learned about SPARQL, SPARQL Endpoint, and simply made a sparqlwrapper.js to query some data from the DBpedia.This article attempts to use Sparqlwrapper.js to read the DBpedia data and display it.TargetBy entering an English word, you return the relevant information in the wiki.So the main prob
The example in this article describes the way JavaScript obtains URL query parameters. Share to everyone for your reference. The implementation methods are as follows:
function getqueryvariable (variable)
{
var query = window.location.search.substring (1);
var VARs = Query.split ("");
for (Var i=0;i
How to use:
Example URL:Http://www.example.com/in
The example in this article describes the way JavaScript obtains URL query parameters. Share to everyone for your reference. The implementation methods are as follows:
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function getqueryvariable (variable) {var query = window.location.search.substring (1); var VARs = Query.split (""); f or (Var i=0;i
How to use:
Oxmldom.loadxml ('
The load () method is used to upload the XML file from the server. However, the load () method can only load files that contain JavaScript in a file stored on the same server, that is, you cannot load an XML file through another person's server.
There are also two modes of loading files: synchronous and asynchronous. When you load a file in synchronous mode, the JavaScri
. Setselectionrange (startpos-T, $t. Selectionend+t); This. focus (); } } Else { This. Value + =myvalue; This. focus (); }})}) (JQuery); /*insert text at textarea--ending*/});Call Method:$ (Text field selector). Insertcontent ("inserted content");$ (Text field selector). Insertcontent ("inserted content", numeric value); Selects the boundary of the inserted text content according to the value, the value: 0 is the full selection of the inser
JavaScript event query synthesis click () object. Click () to cause the object to be clicked. Closed object. Closed Object window is closed True/falsecleartimeout (object) clears the set SetTimeout object Clearinterval (object) Clears the set SetInterval object Confirm ("Prompt info") Pop-up confirmation box, determining return True Cancel return Falsecursor: Style change mouse style hand crosshair text wai
JavaScript event Query synthesisThe click () object. Click () to cause the object to be clicked.Closed object. Closed Object window is closed True/falseCleartimeout (object) clears the SetTimeout object that has been setClearinterval (object) clears the SetInterval object that has been setConfirm ("Hint info") Pop-up confirmation box, OK return true cancel return FalseCursor: Style change mouse style hand c
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