blocks|key|1856757|text|是否要获取文件http://www.example.com/script.js的内容？如果是这样的话，您可以转向AJAX方法来获取它的内容，假设它与页面本身驻留在同一服务器上。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1856758|entityMap|0|LINK|mutability|MUTABLE|url|http://www.example.com/script.js^0|7|W|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Do you want to get the contents of the file <a href="http://www.example.com/script.js" rel="nofollow noreferrer">http://www.example.com/script.js</a>? If so, you could turn to AJAX methods to fetch its content, assuming it resides on the same server as the page itself.

blocks|key|2070707|text|我认为内容不会通过DOM提供。您可以获取src属性的值，并使用AJAX从服务器请求文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2070708|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I don't think the contents will be available via the DOM. You could get the value of the src attribute and use AJAX to request the file from the server.

blocks|key|1856767|text|如果需要src属性的内容，则必须执行ajax请求并查看responsetext。如果您将js放在和之间，您可以通过innerHTML访问它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1856768|这可能会令人感兴趣：http://ejohn.org/blog/degrading-script-tags/|offset|length|1856769|entityMap|0|LINK|mutability|MUTABLE|url|http://ejohn.org/blog/degrading-script-tags/^0|0|A|18|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

if you want the contents of the src attribute, you would have to do an ajax request and look at the responsetext. If you where to have the js between and you could access it through innerHTML.

This might be of interest: <a href="http://ejohn.org/blog/degrading-script-tags/" rel="nofollow noreferrer">http://ejohn.org/blog/degrading-script-tags/</a>

blocks|key|2070700|text|.text确实为您获取了标记的内容，只是在开始标记和结束标记之间没有任何内容。您可以使用.src获取元素的src属性，然后，如果您想获取javascript文件，可以使用链接并发出ajax请求。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2070701|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

.text did get you contents of the tag, it's just that you have nothing between your open tag and your end tag. You can get the src attribute of the element using .src, and then if you want to get the javascript file you would follow the link and make an ajax request for it.

blocks|key|1856834|text|是的，Ajax就是这样做的，就像公认的答案一样。如果你认真对待细节，会有很多陷阱。如果你使用的是jQuery.load(...)，就会假定是错误的内容类型(html而不是应用程序/javascript)，这会把不需要的 放到(scriptNode).innerText中，诸如此类的事情会把事情搞乱。然后，如果您使用jQuery.getScript(...)，下载的脚本会立即执行，这可能不是您想要的(如果您有几个这样的文件，可能会搞乱您想要加载文件的顺序)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1856835|我发现最好在dataType:+"text"中使用jQuery.ajax|1856836|我在一个带有框架集的项目中使用了这种Ajax技术，该项目中的框架集和/或多个框架需要相同的JavaScript，以避免服务器多次发送该JavaScript。|1856837|以下是经过测试并正常工作的代码：|1856838|++++<!DOCTYPE+HTML+PUBLIC+"-//W3C//DTD+HTML+4.01+Frameset//EN"+"http://www.w3.org/TR/html4/frameset.dtd">
++++<html>
++++++++<head>
++++++++++++<script+id="scriptData">
++++++++++++++++var+scriptData+=+[
++++++++++++++++++++{+name:+"foo"++++,+url:+"path/to/foo"++++},
++++++++++++++++++++{+name:+"bar"++++,+url:+"path/to/bar"++++}
++++++++++++++++];
++++++++++++</script>
++++++++++++<script+id="scriptLoader">
++++++++++++++++var+LOADER+=+{
++++++++++++++++++++loadedCount:+0,
++++++++++++++++++++toBeLoadedCount:+0,
++++++++++++++++++++load_jQuery:+function+(){
++++++++++++++++++++++++var+jqNode+=+document.createElement("script");
++++++++++++++++++++++++jqNode.setAttribute("src",+"/path/to/jquery");
++++++++++++++++++++++++jqNode.setAttribute("onload",+"LOADER.loadScripts();");
++++++++++++++++++++++++jqNode.setAttribute("id",+"jquery");
++++++++++++++++++++++++document.head.appendChild(jqNode);
++++++++++++++++++++},
++++++++++++++++++++loadScripts:+function+(){
++++++++++++++++++++++++var+scriptDataLookup+=+this.scriptDataLookup+=+{};
++++++++++++++++++++++++var+scriptNodes+=+this.scriptNodes+=+{};
++++++++++++++++++++++++var+scriptNodesArr+=+this.scriptNodesArr+=+[];
++++++++++++++++++++++++for+(var+j=0;+j<scriptData.length;+j%2B%2B){
++++++++++++++++++++++++++++var+theEntry+=+scriptData[j];
++++++++++++++++++++++++++++scriptDataLookup[theEntry.name]+=+theEntry;
++++++++++++++++++++++++}
++++++++++++++++++++++++//console.log(JSON.stringify(scriptDataLookup,+null,+4));
++++++++++++++++++++++++for+(var+i=0;+i<scriptData.length;+i%2B%2B){
++++++++++++++++++++++++++++var+entry+=+scriptData[i];
++++++++++++++++++++++++++++var+name+=+entry.name;
++++++++++++++++++++++++++++var+theURL+=+entry.url;
++++++++++++++++++++++++++++this.toBeLoadedCount%2B%2B;
++++++++++++++++++++++++++++var+node+=+document.createElement("script");
++++++++++++++++++++++++++++node.setAttribute("id",+name);
++++++++++++++++++++++++++++scriptNodes[name]+=+node;
++++++++++++++++++++++++++++scriptNodesArr.push(node);
++++++++++++++++++++++++++++jQuery.ajax({
++++++++++++++++++++++++++++++++method+++:+"GET",
++++++++++++++++++++++++++++++++url++++++:+theURL,
++++++++++++++++++++++++++++++++dataType+:+"text"
++++++++++++++++++++++++++++}).done(this.makeHandler(name,+node)).fail(this.makeFailHandler(name,+node));
++++++++++++++++++++++++}
++++++++++++++++++++},
++++++++++++++++++++makeFailHandler:+function(name,+node){
++++++++++++++++++++++++var+THIS+=+this;
++++++++++++++++++++++++return+function(xhr,+errorName,+errorMessage){
++++++++++++++++++++++++++++console.log(name,+"FAIL");
++++++++++++++++++++++++++++console.log(xhr);
++++++++++++++++++++++++++++console.log(errorName);
++++++++++++++++++++++++++++console.log(errorMessage);
++++++++++++++++++++++++++++debugger;
++++++++++++++++++++++++}
++++++++++++++++++++},
++++++++++++++++++++makeHandler:+function(name,+node){
++++++++++++++++++++++++var+THIS+=+this;
++++++++++++++++++++++++return+function+(fileContents,+status,+xhr){
++++++++++++++++++++++++++++THIS.loadedCount%2B%2B;
++++++++++++++++++++++++++++//console.log("loaded",+name,+"content+length",+fileContents.length,+"status",+status);
++++++++++++++++++++++++++++//console.log("loaded:",+THIS.loadedCount,+"/",+THIS.toBeLoadedCount);
++++++++++++++++++++++++++++THIS.scriptDataLookup[name].fileContents+=+fileContents;
++++++++++++++++++++++++++++if+(THIS.loadedCount+>=+THIS.toBeLoadedCount){
++++++++++++++++++++++++++++++++THIS.allScriptsLoaded();
++++++++++++++++++++++++++++}
++++++++++++++++++++++++}
++++++++++++++++++++},
++++++++++++++++++++allScriptsLoaded:+function(){
++++++++++++++++++++++++for+(var+i=0;+i<this.scriptNodesArr.length;+i%2B%2B){
++++++++++++++++++++++++++++var+scriptNode+=+this.scriptNodesArr[i];
++++++++++++++++++++++++++++var+name+=+scriptNode.id;
++++++++++++++++++++++++++++var+data+=+this.scriptDataLookup[name];
++++++++++++++++++++++++++++var+fileContents+=+data.fileContents;
++++++++++++++++++++++++++++var+textNode+=+document.createTextNode(fileContents);
++++++++++++++++++++++++++++scriptNode.appendChild(textNode);
++++++++++++++++++++++++++++document.head.appendChild(scriptNode);+//+execution+is+here
++++++++++++++++++++++++++++//console.log(scriptNode);
++++++++++++++++++++++++}
++++++++++++++++++++++++//+call+code+to+make+the+frames+here
++++++++++++++++++++}
++++++++++++++++};
++++++++++++</script>
++++++++</head>
++++++++<frameset+rows="200pixels,*"+onload="LOADER.load_jQuery();">
++++++++++++<frame+src="about:blank"></frame>
++++++++++++<frame+src="about:blank"></frame>
++++++++</frameset>
++++</html>|code-block|syntax|javascript|1856839|related+question|1856840|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/11102625/preload-script-without-execute/42487099#42487099^0|1C|G|31|4|4H|L|0|6|G|P|B|0|0|0|0|0|G|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@$9|18|A|19|B|C]|$9|1A|A|1B|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|1C|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|1D|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|1E|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1F|8|@]|D|@$9|1G|A|1H|1|1I]]|E|$]]|$1|S|3|-4|5|6|7|1J|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

yes, Ajax is the way to do it, as in accepted answer. If you get down to the details, there are many pitfalls. If you use <code>jQuery.load(...)</code>, the wrong content type is assumed (html instead of application/javascript), which can mess things up by putting unwanted <code>&lt;br&gt;</code> into your (scriptNode).innerText, and things like that. Then, if you use <code>jQuery.getScript(...)</code>, the downloaded script is immediately executed, which might not be what you want (might screw up the order in which you want to load the files, in case you have several of those.)
I found it best to use <code>jQuery.ajax</code> with <code>dataType: &quot;text&quot;</code>
I used this Ajax technique in a project with a frameset, where the frameset and/or several frames need the same JavaScript, in order to avoid having the server send that JavaScript multiple times.
Here is code, tested and working:
<pre class="lang-html prettyprint-override"><code> &lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.01 Frameset//EN&quot; &quot;http://www.w3.org/TR/html4/frameset.dtd&quot;&gt;
 &lt;html&gt;
 &lt;head&gt;
 &lt;script id=&quot;scriptData&quot;&gt;
 var scriptData = [
 { name: &quot;foo&quot; , url: &quot;path/to/foo&quot; },
 { name: &quot;bar&quot; , url: &quot;path/to/bar&quot; }
 ];
 &lt;/script&gt;
 &lt;script id=&quot;scriptLoader&quot;&gt;
 var LOADER = {
 loadedCount: 0,
 toBeLoadedCount: 0,
 load_jQuery: function (){
 var jqNode = document.createElement(&quot;script&quot;);
 jqNode.setAttribute(&quot;src&quot;, &quot;/path/to/jquery&quot;);
 jqNode.setAttribute(&quot;onload&quot;, &quot;LOADER.loadScripts();&quot;);
 jqNode.setAttribute(&quot;id&quot;, &quot;jquery&quot;);
 document.head.appendChild(jqNode);
 },
 loadScripts: function (){
 var scriptDataLookup = this.scriptDataLookup = {};
 var scriptNodes = this.scriptNodes = {};
 var scriptNodesArr = this.scriptNodesArr = [];
 for (var j=0; j&lt;scriptData.length; j++){
 var theEntry = scriptData[j];
 scriptDataLookup[theEntry.name] = theEntry;
 }
 //console.log(JSON.stringify(scriptDataLookup, null, 4));
 for (var i=0; i&lt;scriptData.length; i++){
 var entry = scriptData[i];
 var name = entry.name;
 var theURL = entry.url;
 this.toBeLoadedCount++;
 var node = document.createElement(&quot;script&quot;);
 node.setAttribute(&quot;id&quot;, name);
 scriptNodes[name] = node;
 scriptNodesArr.push(node);
 jQuery.ajax({
 method : &quot;GET&quot;,
 url : theURL,
 dataType : &quot;text&quot;
 }).done(this.makeHandler(name, node)).fail(this.makeFailHandler(name, node));
 }
 },
 makeFailHandler: function(name, node){
 var THIS = this;
 return function(xhr, errorName, errorMessage){
 console.log(name, &quot;FAIL&quot;);
 console.log(xhr);
 console.log(errorName);
 console.log(errorMessage);
 debugger;
 }
 },
 makeHandler: function(name, node){
 var THIS = this;
 return function (fileContents, status, xhr){
 THIS.loadedCount++;
 //console.log(&quot;loaded&quot;, name, &quot;content length&quot;, fileContents.length, &quot;status&quot;, status);
 //console.log(&quot;loaded:&quot;, THIS.loadedCount, &quot;/&quot;, THIS.toBeLoadedCount);
 THIS.scriptDataLookup[name].fileContents = fileContents;
 if (THIS.loadedCount &gt;= THIS.toBeLoadedCount){
 THIS.allScriptsLoaded();
 }
 }
 },
 allScriptsLoaded: function(){
 for (var i=0; i&lt;this.scriptNodesArr.length; i++){
 var scriptNode = this.scriptNodesArr[i];
 var name = scriptNode.id;
 var data = this.scriptDataLookup[name];
 var fileContents = data.fileContents;
 var textNode = document.createTextNode(fileContents);
 scriptNode.appendChild(textNode);
 document.head.appendChild(scriptNode); // execution is here
 //console.log(scriptNode);
 }
 // call code to make the frames here
 }
 };
 &lt;/script&gt;
 &lt;/head&gt;
 &lt;frameset rows=&quot;200pixels,*&quot; onload=&quot;LOADER.load_jQuery();&quot;&gt;
 &lt;frame src=&quot;about:blank&quot;&gt;&lt;/frame&gt;
 &lt;frame src=&quot;about:blank&quot;&gt;&lt;/frame&gt;
 &lt;/frameset&gt;
 &lt;/html&gt;
</code></pre>
<a href="https://stackoverflow.com/questions/11102625/preload-script-without-execute/42487099#42487099">related question</a>

blocks|key|2070674|text|如果您希望访问<script>标记的属性，而不是script.js的内容，那么XPath很可能就是您想要的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2070675|它将允许您获取每个脚本属性。|2070676|如果您想要的是example.js文件内容，那么您可以发出一个AJAX请求来获取它。|2070677|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3schools.com/Xpath/^0|7|8|13|5|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|Y|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

If you're looking to access the attributes of the <code>&lt;script&gt;</code> tag rather than the contents of script.js, then <a href="http://www.w3schools.com/Xpath/" rel="nofollow noreferrer">XPath</a> may well be what you're after.

It will allow you to get each of the script attributes.

If it's the example.js file contents you're after, then you can fire off an AJAX request to fetch it.

blocks|key|2070733|text|这很有趣，但我们不能，我们必须通过互联网再次获取它们。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2070734|浏览器很可能会读取他的缓存，但仍会发送一个ping来验证内容长度。|2070735|[...document.scripts].forEach((script)+=>+{
++fetch(script.src)
++++++.then((response)+=>+response.text()+)
++++++.then((source)+=>+console.log(source)+)

})|code-block|syntax|javascript|2070736|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

It's funny but we can't, we have to fetch them again over the internet.
Likely the browser will read his cache, but a ping is still sent to verify the content-length.
<pre><code>[...document.scripts].forEach((script) =&gt; {
 fetch(script.src)
 .then((response) =&gt; response.text() )
 .then((source) =&gt; console.log(source) )

})
</code></pre>

blocks|key|2070696|text|如果提供了src属性，用户代理是required+to+ignore+the+content+of+the+element的，如果您需要从外部脚本访问它，那么您可能做错了什么。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2070697|更新:我看到你添加了一个注释，大意是你想缓存脚本，以后再使用它。目的是什么？假设您使用的是HTTP+is+cache+friendly，那么您的缓存需求很可能已经由浏览器满足了。|2070698|entityMap|0|LINK|mutability|MUTABLE|url|http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.1|1|http://www.mnot.net/cache_docs/^0|G|19|0|0|19|M|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|F|3|-4|5|6|7|X|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]]]

If a src attribute is provided, user agents are <a href="http://www.w3.org/TR/html4/interact/scripts.html#h-18.2.1" rel="nofollow noreferrer">required to ignore the content of the element</a>, if you need to access it from the external script, then you are probably doing something wrong.

Update: I see you've added a comment to the effect that you want to cache the script and use it later. To what end? Assuming your <a href="http://www.mnot.net/cache_docs/" rel="nofollow noreferrer">HTTP is cache friendly</a>, then your caching needs are likely taken care of by the browser already.

blocks|key|1856813|text|使用2008风格的DOM绑定，它应该是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1856814|document.getElementById('myscript').getAttribute("src");
document.getElementById('myscript').getAttribute("type");|code-block|syntax|javascript|1856815|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Using 2008-style DOM-binding it would rather be:

<pre><code>document.getElementById('myscript').getAttribute("src");
document.getElementById('myscript').getAttribute("type");
</code></pre>

blocks|key|1856817|text|您希望使用innerHTML属性获取脚本标记的内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1856818|document.getElementById("myscript").innerHTML|code-block|syntax|javascript|1856819|但正如@olle在另一个答案中所说的，你可能想读一读：http://ejohn.org/blog/degrading-script-tags/|offset|length|1856820|entityMap|0|LINK|mutability|MUTABLE|url|http://ejohn.org/blog/degrading-script-tags/^0|0|0|R|18|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@$I|V|J|W|1|X]]|A|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

You want to use the innerHTML property to get the contents of the script tag:

<pre><code>document.getElementById("myscript").innerHTML
</code></pre>

But as @olle said in another answer you probably want to have a read of:
<a href="http://ejohn.org/blog/degrading-script-tags/" rel="nofollow noreferrer">http://ejohn.org/blog/degrading-script-tags/</a>

blocks|key|1856760|text|不确定为什么需要这样做？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1856761|另一种方法是将脚本保存在某个隐藏元素中，并使用Eval运行它。然后可以查询对象的innerHtml属性。|1856762|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Not sure why you would need to do this?

Another way round would be to hold the script in a hidden element somewhere and use Eval to run it. You could then query the objects innerHtml property.

If I have a script tag like this:

<pre><code>&lt;script
 id = "myscript"
 src = "http://www.example.com/script.js"
 type = "text/javascript"&gt;
&lt;/script&gt;
</code></pre>

I would like to get the content of the "script.js" file. I'm thinking about something like <code>document.getElementById("myscript").text</code> but it doesn't work in this case.

How can I get the content of the file specified as the 'src' of a <script> tag?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如果我有一个如下的脚本标记：<script id = "myscript" src = "http://www.example.com/script.js" type = "text/javascript"></script>我想要获取"script.js“文件的内容。我在考虑像document.getElementById("myscript").text这样的东西，但它在这种

问如何获取指定为<script>标签的'src‘的文件内容？
EN

回答 11

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问如何获取指定为<script>标签的'src‘的文件内容？EN

回答 11

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问如何获取指定为<script>标签的'src‘的文件内容？
EN