几个常用js代码

几个常用的js小段

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1.回车控制

var keyc=window.event.keyCode;if(keyc==13){//自己的操作}

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2.获得与数据库一样格式的时间串

function nowTime(){var now=new Date();var timeStr=now.getYear()+"-";if(now.getMonth()<9){timeStr += "0"timeStr += now.getMonth()+1+"-";}else{timeStr += now.getMonth()+1+"-";}if(now.getDate()<10){timeStr +="0"+now.getDate();}else{timeStr += now.getDate();}if(now.getHours()-0<10){timeStr +=" 0"+now.getHours();}else{timeStr +=" "+now.getHours();}if(now.getMinutes()-0<10){timeStr +=":0"+now.getMinutes();}else{timeStr +=":"+now.getMinutes();}if(now.getSeconds()-0<10){timeStr +=":0"+now.getSeconds()}else{timeStr +=":"+now.getSeconds()}return timeStr;}

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3.全屏局中open

window.open("<c:url value='/"+url_+"'/>","","toolbar=0,location=0,scrollbars=1,resizable=1,width="+(screen.availWidth-20)+",height="+(screen.availHeight-30)+",top=0,left=0")

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4.js对文字进行编码涉及3个函数：escape,encodeURI,encodeURIComponent，

相应3个解码数：unescape,decodeURI,decodeURIComponent

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5.获得js对象的内容

var aaaa;for(var a in obj){  aaaa+=a+"  :  "+json[a]+"<br/>"}//document.write(aaaa);//alert(aaaa);

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6.iframe 内 调用外部方法 和?iframe外 调用iframe内的

//iframe中window.parent.myMethod();//iframe中window.parent.setIframeDom(window);//iframe外var iframeObj;function setIframeDom(obj){iframeObj=obj;}//例子function exportToExcelO(){iframeObj.exportToExcel();}

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