Учитывая следующие HTML, JavaScript и XML, что означает
tempText.innerHTML = allImages[i].textContent
и каково значение
allImages[i].textContent
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>My Second Ajax Script</title> <link type="text/css" rel="stylesheet" href="script02.css" /> <script type="text/javascript" src="script02.js"></script> </head> <body> <div id="pictureBar"> </div> </body> </html>
window.onload = initAll; var xhr = false; function initAll() { if (window.XMLHttpRequest) { xhr = new XMLHttpRequest(); } else { if (window.ActiveXObject) { try { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { } } } if (xhr) { xhr.onreadystatechange = showPictures; xhr.open("GET", "C:\wamp\www\flickrfeed.xml", true); xhr.send(null); } else { alert("Sorry, but I couldn't create an XMLHttpRequest"); } } function showPictures() { var tempDiv = document.createElement("div"); var tempText = document.createElement("div"); if (xhr.readyState == 4) { if (xhr.status == 200) { var allImages = xhr.responseXML.getElementsByTagName("content"); for (var i=0; i<allImages.length; i++) { tempText.innerHTML = allImages[i].textContent; tempDiv = tempText.getElementsByTagName("p"); var theText = tempDiv[1].innerHTML; theText = theText.replace(/240/g,"75"); theText = theText.replace(/180/g,"75"); theText = theText.replace(/_m/g,"_s"); document.getElementById("pictureBar").innerHTML += theText; } } else { alert("There was a problem with the request " + xhr.status); } } }
<?xml version="1.0" encoding="utf-8" standalone="yes"?> <feed xmlns="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:flickr="urn:flickr:" xmlns:media="http://search.yahoo.com/mrss/"> <title>Content from Paradise Ridge Sculpture Grove</title> <link rel="self" href="http://api.flickr.com/services/feeds/photoset.gne?set=72157600976524175&nsid=23922109@N00&lang=en-us" /> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/sets/72157600976524175"/> <id>tag:flickr.com,2005:http://www.flickr.com/photos/23922109@N00/sets/72157600976524175</id> <icon>http://farm2.static.flickr.com/1335/882568164_72eee9b41f_s.jpg</icon> <subtitle>The <a href="http://www.paradiseridgewinery.com/">Paradise Ridge Winery</a> not only has great wines, but they also have a sculpture garden. We visited on 22 July 2007.</subtitle> <updated>2007-07-24T05:19:08Z</updated> <generator uri="http://www.flickr.com/">Flickr</generator> <entry> <title>IMG_0045.JPG</title> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/882590644/in/set-72157600976524175/"/> <id>tag:flickr.com,2005:/photo/882590644/in/set-72157600976524175</id> <published>2007-07-24T05:19:08Z</published> <updated>2007-07-24T05:19:08Z</updated> <dc:date.Taken>2007-07-22T13:42:49-08:00</dc:date.Taken> <content type="html"> <p><a href="http://www.flickr.com/people/dorismith/">Dori Smith</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/dorismith/882590644/" title="IMG_0045.JPG"><img src="http://farm2.static.flickr.com/1063/882590644_5a4a0d89f3_m.jpg" width="240" height="180" alt="IMG_0045.JPG" /></a></p> </content> <author> <name>Dori Smith</name> <uri>http://www.flickr.com/people/dorismith/</uri> </author> <link rel="enclosure" type="image/jpeg" href="http://farm2.static.flickr.com/1063/882590644_5a4a0d89f3_m.jpg" /> <category term="winery" scheme="http://www.flickr.com/photos/tags/" /> <category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" /> <category term="sculptures" scheme="http://www.flickr.com/photos/tags/" /> <category term="dorismith" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" /> </entry> <entry> <title>IMG_0043.JPG</title> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/882589162/in/set-72157600976524175/"/> <id>tag:flickr.com,2005:/photo/882589162/in/set-72157600976524175</id> <published>2007-07-24T05:19:08Z</published> <updated>2007-07-24T05:19:08Z</updated> <dc:date.Taken>2007-07-22T13:41:55-08:00</dc:date.Taken> <content type="html"> <p><a href="http://www.flickr.com/people/dorismith/">Dori Smith</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/dorismith/882589162/" title="IMG_0043.JPG"><img src="http://farm2.static.flickr.com/1179/882589162_25b4d6bcbe_m.jpg" width="180" height="240" alt="IMG_0043.JPG" /></a></p> </content> <author> <name>Dori Smith</name> <uri>http://www.flickr.com/people/dorismith/</uri> </author> <link rel="enclosure" type="image/jpeg" href="http://farm2.static.flickr.com/1179/882589162_25b4d6bcbe_m.jpg" /> <category term="winery" scheme="http://www.flickr.com/photos/tags/" /> <category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" /> <category term="sculptures" scheme="http://www.flickr.com/photos/tags/" /> <category term="dorismith" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" /> </entry> <entry> <title>IMG_0042.JPG</title> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/882587910/in/set-72157600976524175/"/> <id>tag:flickr.com,2005:/photo/882587910/in/set-72157600976524175</id> <published>2007-07-24T05:19:08Z</published> <updated>2007-07-24T05:19:08Z</updated> <dc:date.Taken>2007-07-22T13:40:36-08:00</dc:date.Taken> <content type="html"> <p><a href="http://www.flickr.com/people/dorismith/">Dori Smith</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/dorismith/882587910/" title="IMG_0042.JPG"><img src="http://farm2.static.flickr.com/1073/882587910_39ffde28e6_m.jpg" width="240" height="180" alt="IMG_0042.JPG" /></a></p> </content> <author> <name>Dori Smith</name> <uri>http://www.flickr.com/people/dorismith/</uri> </author> <link rel="enclosure" type="image/jpeg" href="http://farm2.static.flickr.com/1073/882587910_39ffde28e6_m.jpg" /> <category term="winery" scheme="http://www.flickr.com/photos/tags/" /> <category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" /> <category term="sculptures" scheme="http://www.flickr.com/photos/tags/" /> <category term="dorismith" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" /> </entry> <entry> <title>IMG_0041.JPG</title> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/882586288/in/set-72157600976524175/"/> <id>tag:flickr.com,2005:/photo/882586288/in/set-72157600976524175</id> <published>2007-07-24T05:19:08Z</published> <updated>2007-07-24T05:19:08Z</updated> <dc:date.Taken>2007-07-22T13:40:18-08:00</dc:date.Taken> <content type="html"> <p><a href="http://www.flickr.com/people/dorismith/">Dori Smith</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/dorismith/882586288/" title="IMG_0041.JPG"><img src="http://farm2.static.flickr.com/1334/882586288_6de3304bbb_m.jpg" width="240" height="180" alt="IMG_0041.JPG" /></a></p> </content> <author> <name>Dori Smith</name> <uri>http://www.flickr.com/people/dorismith/</uri> </author> <link rel="enclosure" type="image/jpeg" href="http://farm2.static.flickr.com/1334/882586288_6de3304bbb_m.jpg" /> <category term="winery" scheme="http://www.flickr.com/photos/tags/" /> <category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" /> <category term="sculptures" scheme="http://www.flickr.com/photos/tags/" /> <category term="dorismith" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" /> </entry> <entry> <title>IMG_0040.JPG</title> <link rel="alternate" type="text/html" href="http://www.flickr.com/photos/dorismith/882583896/in/set-72157600976524175/"/> <id>tag:flickr.com,2005:/photo/882583896/in/set-72157600976524175</id> <published>2007-07-24T05:19:08Z</published> <updated>2007-07-24T05:19:08Z</updated> <dc:date.Taken>2007-07-22T13:39:49-08:00</dc:date.Taken> <content type="html"> <p><a href="http://www.flickr.com/people/dorismith/">Dori Smith</a> posted a photo:</p> <p><a href="http://www.flickr.com/photos/dorismith/882583896/" title="IMG_0040.JPG"><img src="http://farm2.static.flickr.com/1233/882583896_90fad7b9ea_m.jpg" width="180" height="240" alt="IMG_0040.JPG" /></a></p> </content> <author> <name>Dori Smith</name> <uri>http://www.flickr.com/people/dorismith/</uri> </author> <link rel="enclosure" type="image/jpeg" href="http://farm2.static.flickr.com/1233/882583896_90fad7b9ea_m.jpg" /> <category term="winery" scheme="http://www.flickr.com/photos/tags/" /> <category term="sonomacounty" scheme="http://www.flickr.com/photos/tags/" /> <category term="sculptures" scheme="http://www.flickr.com/photos/tags/" /> <category term="dorismith" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridge" scheme="http://www.flickr.com/photos/tags/" /> <category term="paradiseridgesculptures" scheme="http://www.flickr.com/photos/tags/" /> </entry> </feed>
Учитывая, что это прямо из JavaScript & Ajax для Интернета: Visual QuickStart Guide, 7-е издание 1 , с чем конкретно у вас возникают проблемы в (line-объяснение на страницах 329-335?
1 В соавторстве с мной, кстати.
.innerHTML означает, что HTML в целевом элементе.
например
Hello World!
.innerHTML для элемента
- это «Hello World!».
Я не понимаю остальную часть вашего запроса.
Хотя я считаю, что .textContent может означать текстовое содержимое с узлом XML
textContent содержит (удивительно!) Текстовое содержимое узла, например, его содержимое со всеми разделенными тегами.