哈佛大学 构建动态网站 php lecture7 Javascript

0ComputerScienceE-75BuildingDynamicWebsitesHarvardExtensionSchool:[e-mail]1JavaScript„CoreJavaScript1.5Reference„Are-introductiontoJavaScript„JavaScriptReference„JavaScriptTutorial=text/javascript//![CDATA[...//]]/script3JavaScriptscriptlanguage=Javascript1.5//![CDATA[...//]]/script4JavaScriptscriptsrc=file.jstype=text/javascript/script5noscriptscripttype=text/javascript//![CDATA[document.write(hello,world);//]]/scriptnoscriptgoodbye,world/noscript6Statements„break„const„continue„do...while„for„for...in„foreach...in„function„if...else„return„switch„throw„try...catch„var„while„with„...=newArray();vara=[];a[0]=foo;a[1]=bar;a[2]=baz;8Arraysvara=newArray();vara=[];a[a.length]=foo;a[a.length]=bar;a[a.length]=baz;9focus()scripttype=text/javascript//![CDATA[//putcursorinusernamefieldifemptyif(document.forms.login.username.value==){document.forms.login.username.focus();document.forms.login.username.value=document.forms.login.username.value;}//elseputcursorinpasswordfieldelse{document.forms.login.password.focus();document.forms.login.password.value=document.forms.login.password.value;}//]]10Validation11RegularExpressions„RegEx:Global_Functions:RegExp„String:Global_Functions:String„Array„Boolean„Date„Function„Math„Number„Object„RegExp„String„...=newObject();varobj={};obj.key=value;obj[key]=value;varobj={key:value};14EventHandlers„onblur„onchange„onclick„onfocus„onkeydown„onkeyup„onload„onmousedown„onmouseup„onmouseout„onmouseover„onmouseup„onresize„onselect„onsubmit„...„className„style(){varblinks=document.getElementsByName(blink);for(vari=0;iblinks.length;i++){if(blinks[i].style.visibility==visible)blinks[i].style.visibility=hidden;elseblinks[i].style.visibility=visible;}}17YUIEventUtilityYAHOO.util.Event.addListener(window,load,function(){window.setInterval(blinker(),500);});„Dojo„ExtJS„jQuery„MooTools„Prototype„script.aculo.us„YUI„...19Quirks://„FireBug„JavaScriptDebugger„JSMin„packer„ShrinkSafe„YUICompressor://:[e-mail]