AJAX
AJAX
相关考题:
AWebservicereturnsalistofsystemusersinthefollowingformat.Youneedtopopulateadrop-downmenuwiththeIDsandnamesoftheusersfromtheWebservice,intheorderprovidedbytheservice.Whichcodesegmentshouldyouuse?() A.$.ajax({type:GET,url:serviceURL,success:function(xml){$.each($(xml),function(i,item){$().attr(value,id).text(tx).appendTo(#dropdown);});}});B.$.ajax({type:GET,url:serviceURL,success:function(xml){$(xml).find(user).each(function(){varid=$(this).id;vartx=$(this).name.text$().attr(value,id).text(tx).appendTo(#dropdown);});}});C.$.ajax({type:GET,url:serviceURL,success:function(xml){$(xml).find(user).each(function(){varid=$(this).attr(id);vartx=$(this).find(name).text();$().attr(value,id).text(tx).appendTo(#dropdown);});}});D.$.ajax({type:GET,url:serviceURL,success:function(xml){xml.find(user).each(function(node){varid=$(node).attr(id);vartx=$(node).find(name).text();$().attr(value,id).text(tx).appendTo(#dropdown);});}});
YoucreateaWebpagethatcontainsthespanshowninthefollowinglineofcode.TextYouneedreplacethecontentsofthespanwithHTMLthatyoudownloadfromaURLspecifiedbyaglobalvariablenamedlocalURL.Whichcodesegmentshouldyouuse?()A.$.ajax({type:GET,url:localURL, dataType:jsonp,success:function(htmlText {$(#span1).text(htmlText);}});B.$.ajax( localURL,{}, function(htmlText){$(#span1).html(htmlText);},html);C.$.ajax({ type:GET,url:localURL,dataType:html,success:function(htmlText){$(#span1).innerHTML=htmlText;}});D.$.ajax({ type:GET,url:localURL, success:function(htmlText){$(#span1).html(htmlText);}});
基于Web 2.0的Web应用十分强调用户的体验与感受,Ajax是目前广泛使用的表现层技术。请用200字以内的文字简要介绍Ajax的概念和核心思想,并说明在使用Ajax时,从效率方面考虑需要注意的问题(列举三个即可)。
Ajax技术是一种独特的Web技术,下列关于Ajax技术特点的叙述正确的是()A、Ajax技术把javascript、CSS、DOM和HTML等技术结合起来B、Ajax技术在服务器端使用同步处理技术C、Ajax技术不可以实现网页的局部更新D、Ajax技术是一种服务器端实现方法
You create a Web page that contains the span shown in the following line of code. TextYou need replace the contents of the span with HTML that you download from a URL specified by a global variable named localURL. Which code segment should you use?()A、$.ajax({ type: "GET", url: localURL, dataType: "jsonp", success: function(htmlText { $("#span1").text(htmlText); } }); B、$.ajax( localURL, {}, function(htmlText) { $("#span1").html(htmlText); },"html" ); C、$.ajax({ type: "GET", url: localURL, dataType: "html",success: function(htmlText) { $("#span1").innerHTML = htmlText; }}); D、$.ajax({ type: "GET", url: localURL, success: function(htmlText) { $("#span1").html(htmlText); } });
问答题简述使用Ajax的优点有哪些?