GWT - developing web applications with java (script) - Ewa Maciaś
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GWT allows developers to create rich web applications using Java that are compiled to optimized JavaScript for high performance in browsers. It provides tools to develop using Java and have the code translated to JavaScript to be browser compatible without needing JavaScript programming skills. The framework handles cross-browser inconsistencies and AJAX requests.
![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;
}
}](https://image.slidesharecdn.com/gwt-developingwebapplicationwithjavascript-120522124127-phpapp02/85/GWT-developing-web-applications-with-java-script-Ewa-Macias-3-320.jpg)
![{} + [] = ?
empty object + empty array = ?](https://image.slidesharecdn.com/gwt-developingwebapplicationwithjavascript-120522124127-phpapp02/85/GWT-developing-web-applications-with-java-script-Ewa-Macias-4-320.jpg)
![[]
empty array](https://image.slidesharecdn.com/gwt-developingwebapplicationwithjavascript-120522124127-phpapp02/85/GWT-developing-web-applications-with-java-script-Ewa-Macias-6-320.jpg)
GWT - developing web applications with java (script) - Ewa Maciaś
- 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 = ?
- 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); }