如何使用纯javascript，在没有Jquery的情况下，在下面的字符串内容中获取最后一个锚标记的href值。
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
这是我想要的部分
href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"
答案 0 :(得分：5)
如果您create an element并将HTML字符串插入其中，则可以使用常用的DOM方法getElementsByTagName或querySelector / querySelectorAll来操作HTML：
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
var snippet = document.createElement("div");
snippet.innerHTML=contents;
var links = snippet.getElementsByTagName("a"),
lastURL = links[links.length-1].href; // or getAttribute("href")
console.log(lastURL);
答案 1 :(得分：3)
使用html内容生成temporary element（或使用DOMParser）并获取其中的标记属性。
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
var temp = document.createElement('div');
temp.innerHTML = contents;
// if you want to get a tag within strong tag
console.log(
temp.querySelector('strong a').getAttribute('href')
);
// if you want to get the last link
var ele = temp.getElementsByTagName('a');
console.log(
ele[ele.length - 1].getAttribute('href')
);
答案 2 :(得分：2)
试试这个：
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
var hrefs = contents.match(/href="([^"]*)/g);
var href = hrefs[hrefs.length-1];
console.log(href);
答案 3 :(得分：2)
如果您知道字符串来自可靠来源，您可以将其弹出到div并使用DOM函数，如下所示：
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
var container = document.createElement('div');
container.innerHTML = contents;
var anchorTags = Array.prototype.slice.call(container.getElementsByTagName('a')); // Get all anchor tags && convert collection to array
console.log(anchorTags.pop().href); // Get last anchor tag and log its href property
答案 4 :(得分：2)
var contents = '<div id="content"><a href="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg"><img title="Ruffcoin-Made-In-Aba.jpg" class="alignnone size-full" alt="image" src="http://www.okhype.com/wp-content/uploads/2016/12/ruffcoin-made-in-aba.jpg" /></a>↵↵↵↵Indigenous heavyweight, <a href="http://www.okhype.com/tag/ruffcoin">Ruffcoin</a> recently dropped a new album titled “Made In Aba“. I’ve been giving it a few spins, and I must say, the album is quite solid.↵↵[matrix]↵↵Two of my early faves are “Aba Made” and “Higher Higher which feature <a href="http://www.okhype.com/tag/sparkle">Sparkle</a>)”. You should check ’em out, then download on iTunes <a href="https://itunes.apple.com/us/album/made-in-aba/id1180901826?ign-mpt=uo%3D4"><strong>hereq</strong></a>.↵↵Cop below.↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_-_Aba_Made_Okhype.com_.mp3">DOWNLOAD Ruffcoin - Aba Made</a></strong>↵↵[audio mp3="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3"][/audio]<strong><a href="http://www.okhype.com/wp-content/uploads/2016/12/Ruffcoin_ft_Sparkle_-_Higher_Higher_Okhype.com_.mp3">DOWNLOAD Ruffcoin ft Sparkle - Higher Higher</a></strong></div>';
// Create element that will temporarially house the elements in the string
var temp = document.createElement('div');
// Convert the string to child elements
temp.innerHTML = contents;
// Get all the links
var links = temp.querySelectorAll("a");
// Get the contents of the href attribute of the last link:
console.log(links[links.length-1].href);
答案 5 :(得分：2)
试试这个：
var links = snippet.getElementsByTagName("a");
links(links.length - 1).getAttribute('href');