标签：define orm .ajax 注意 exec after ring jquery 文章
mac不知道为何，文章字数一多，浏览器就重启。只好分开写了。
In the event a Deferred was resolved with no value, the corresponding doneCallback argument will be undefined. If a Deferred resolved to a single value, the corresponding argument will hold that value. In the case where a Deferred resolved to multiple values, the corresponding argument will be an array of those values. For example:
var d1 = $.Deferred();var d2 = $.Deferred();var d3 = $.Deferred();$.when( d1, d2, d3 ).done(function ( v1, v2, v3 ) {console.log( v1 ); // v1 is undefinedconsole.log( v2 ); // v2 is "abc"console.log( v3 ); // v3 is an array [ 1, 2, 3, 4, 5 ]});d1.resolve();d2.resolve( "abc" );d3.resolve( 1, 2, 3, 4, 5 );
In the multiple-Deferreds case where one of the Deferreds is rejected,jQuery.when()immediately fires the failCallbacks for its master Deferred. Note that some of the Deferreds may still be unresolved at that point. The arguments passed to the failCallbacks match the signature of the failCallback for the Deferred that was rejected. If you need to perform additional processing for this case, such as canceling any unfinished Ajax requests, you can keep references to the underlying jqXHR objects in a closure and inspect/cancel them in the failCallback.
Examples:
Execute a function after two Ajax requests are successful. (See the jQuery.ajax() documentation for a complete description of success and error cases for an ajax request).
$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).done(function( a1, a2 ) {// a1 and a2 are arguments resolved for the page1 and page2 ajax requests, respectively.// Each argument is an array with the following structure: [ data, statusText, jqXHR ]var data = a1[ 0 ] + a2[ 0 ]; // a1[ 0 ] = "Whip", a2[ 0 ] = " It"if ( /Whip It/.test( data ) ) {alert( "We got what we came for!" );}});
Execute the functionmyFuncwhen both ajax requests are successful, ormyFailureif either one has an error.$.when( $.ajax( "/page1.php" ), $.ajax( "/page2.php" ) ).then( myFunc, myFailure );
标签：define orm .ajax 注意 exec after ring jquery 文章
原文地址：http://www.cnblogs.com/jiangtian/p/6906216.html
