Ewa Maciaś - GWT developing web applications with java(script)

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1. GWT developing web applications with java(script) Ewa Maciaś, emacias@google.com, 18-04- 2012 Kraków
3. var jstiming = parent.jstiming; function click(m) { jstiming && jstiming.load.tick(m); } function _B_prog(pct) { if (parent['OZ_prog'] !== undefined) { parent['OZ_prog'] = pct; } }
4. {} + [] = ? empty object + empty array = ?
5. {} empty object
6. [] empty array
7. 0 zero
11. AJAX
12. function ajaxFunction(){ var xmlHttp; try{ // Creating XMLHttpRequest object (Gecko engine, WebKit, Presto, Trident w IE>6) xmlHttp=new XMLHttpRequest(); } catch(e) { // Catches exception if JavaScript does not have XMLHttpRequest try { // Creating ActiveXObject object, for ActiveX IE console xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { try { // Creating ActiveXObject object, other versions of IE xmlHttp=new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) { // Show an error on case of support for XMLHttpRequest alert("Your browser does not support AJAX!"); return false; } } } return xmlHttp; }
13. package com.example.foo.client; import com.google.gwt.user.client.rpc.RemoteService; public interface MyService extends RemoteService { public String myMethod(String s); }