PrimeFaces 核心源码 js

primefaces/src/main/resources/META-INF/resources/primefaces/core/core.js 

(function(window) {

if(window.PrimeFaces) {

window.PrimeFaces.debug("PrimeFaces already loaded, ignoring duplicate execution.");

return;

}

var PrimeFaces = {

escapeClientId:function(id) {

return"#"+ id.replace(/:/g,"\\:");

},

cleanWatermarks:function(){

$.watermark.hideAll();

},

//...

};

// ...

PrimeFaces.locales['en']= PrimeFaces.locales['en_US'];

PF=function(widgetVar) {

 var widgetInstance= PrimeFaces.widgets[widgetVar];

if (!widgetInstance) {

PrimeFaces.error("Widget for var '"+ widgetVar +"' not available!");

}

return widgetInstance;

};

//expose globally

window.PrimeFaces = PrimeFaces;

})(window);

从上面的代码可以看出，实际上是定义了一个接受一个参数的匿名函数，并把window传给该函数然后执行。