Here is the code

    &lt;input type=&quot;button&quot; value=&quot;Back&quot; onclick=&quot;window.history.back()&quot; /&gt; 

You can either use:

    &lt;button onclick=&quot;window.history.back()&quot;&gt;Back&lt;/button&gt;

or..

    &lt;button onclick=&quot;window.history.go(-1)&quot;&gt;Back&lt;/button&gt;

The difference, of course, is `back()` only goes back 1 page but `go()` goes back/forward the number of pages you pass as a parameter, relative to your current page.

There&#39;s a few ways, this is one:

    window.history.go(-1);

`onclick=&quot;history.go(-1)&quot;` Simply

I have the following input elements:

    &lt;input id=&quot;AAA_RandomString_BBB&quot; type=&quot;text&quot; /&gt;
    &lt;input id=&quot;AAA_RandomString_BBB_Start&quot; type=&quot;text&quot; /&gt;
    &lt;input id=&quot;AAA_RandomString_BBB_End&quot; type=&quot;text&quot; /&gt;

AAA &amp; BBB are constants and I will always know what they are.  However RandomString will always be random.

I want to get the value of AAA_RandomString_BBB.  I do not want the values from the input elements with ID ending in either _Start or _End.

I tried the folowing:

    $(&#39;[id^=&quot;AAA_&quot;]&#39;)

But the above selects all of the input elements that have an ID starting with &quot;AAA_&quot;

I need some way to select using a regex type syntax like:

    $(&#39;[id^=&quot;AAA_(.+?)_BBB&quot;]&#39;)

Is this possible? If not, can anyone suggest a method of selecting 

How can I select an element by ID with jQuery using regex?

I don&#39;t understand the meaning of &quot;258EAFA5-E914-47DA-95CA-C5AB0DC85B11&quot; in [RFC 6455](https://www.rfc-editor.org/rfc/rfc6455).
Why does the server need this magic string?
And why does the WebSocket protocol need this mechanism?

What does &quot;258EAFA5-E914-47DA-95CA-C5AB0DC85B11&quot; means in WebSocket Protocol

&gt; **Possible Duplicate:**  
&gt; [Go Back to Previous Page](https://stackoverflow.com/questions/2548566/go-back-to-previous-page)  
&gt; [get back to previous page](https://stackoverflow.com/questions/2968425/get-back-to-previous-page)  

&lt;!-- End of automatically inserted text --&gt;

How to get the previous page in javascript coding. Go to the previous page when click that back button.

Go back button in a page

> Possible Duplicate: 
> <a href="https://stackoverflow.com/questions/2548566/go-back-to-previous-page" target="_blank" rel="noopener noreferrer">Go Back to Previous Page</a> 
> <a href="https://stackoverflow.com/questions/2968425/get-back-to-previous-page" target="_blank" rel="noopener noreferrer">get back to previous page</a>

How to get the previous page in javascript coding. Go to the previous page when click that back button.

So, a colleague introduced me to the publish/subscribe pattern (in JS/jQuery), but I&#39;m having a hard time getting to grips with *why* one would use this pattern over &#39;normal&#39; JavaScript/jQuery.

For example, previously I had the following code...

    $container.on(&#39;click&#39;, &#39;.remove_order&#39;, function(event) {
        event.preventDefault();
        var orders = $(this).parents(&#39;form:first&#39;).find(&#39;div.order&#39;);
        if (orders.length &gt; 2) {
            orders.last().remove();
        }
    });

And I could see the merit of doing this instead, for example...

    removeOrder = function(orders) {
        if (orders.length &gt; 2) {
            orders.last().remove();
        }
    }

    $container.on(&#39;click&#39;, &#39;.remove_order&#39;, function(event) {
        event.preventDefault();
        removeOrder($(this).parents(&#39;form:first&#39;).find(&#39;div.order&#39;));
    });

Because it introduces the ability to re-use the `removeOrder` functionality for different events etc.

But why would you decide to implement the publish/subscribe pattern and go to the following lengths, if it does the same thing? (FYI, I used [jQuery tiny pub/sub][1])

    removeOrder = function(e, orders) {
		if (orders.length &gt; 2) {
			orders.last().remove();
		}
  	}

    $.subscribe(&#39;iquery/action/remove-order&#39;, removeOrder);

    $container.on(&#39;click&#39;, &#39;.remove_order&#39;, function(event) {
        event.preventDefault();
        $.publish(&#39;iquery/action/remove-order&#39;, $(this).parents(&#39;form:first&#39;).find(&#39;div.order&#39;));
    });

I&#39;ve read about the pattern for sure, but I just can&#39;t imagine why this would ever be necessary. The tutorials I&#39;ve seen that explain *how* to implement this pattern only cover just as basic examples as my own.

I imagine that the pub/sub&#39;s usefulness would make itself apparent in a more complex application, but I can&#39;t imagine one. I&#39;m afraid that I am completely missing the point; but I&#39;d like to know the point if there is one!

Could you explain **succinctly** why and in what situations this pattern is advantageous? Is it worth using the pub/sub pattern for code snippets like my examples above?

  [1]: https://gist.github.com/661855

Why would one use the Publish/Subscribe pattern (in JS/jQuery)?

I have this JSON file I generate in the server I want to make accessible on the client as the page is viewable. Basically what I want to achieve is: 

I have the following tag declared in my html document: 

    &lt;script id=&quot;test&quot; type=&quot;application/json&quot; src=&quot;http://myresources/stuf.json&quot;&gt;

The file referred in its source has JSON data. As I&#39;ve seen, data has been downloaded, just like it happens with the scripts. 

Now, how do I access it in Javascript? I&#39;ve tried accessing the script tag, with and without jQuery, using a multitude of methods to try to get my JSON data, but somehow this doesn&#39;t work. Getting its `innerHTML` would have worked had the json data been written inline in the script. Which it wasn&#39;t and isn&#39;t what I&#39;m trying to achieve. 

Remote JSON Request after page loads is also not an option, in case you want to suggest that. 

HTML/Javascript: how to access JSON data loaded in a script tag with src set

Suppose I have a `Foo` object

How can I extend this object by adding a `bar()` method and also ensure that future instances of `Foo` have this method?

Javascript add method to object

I&#39;ve been tinkering with Node.js and found a little problem.  I&#39;ve got a script which resides in a directory called `data`.  I want the script to write some data to a file in a subdirectory within the `data` subdirectory.  However I am getting the following error:

    { [Error: ENOENT, open &#39;D:\data\tmp\test.txt&#39;] errno: 34, code: &#39;ENOENT&#39;, path: &#39;D:\\data\\tmp\\test.txt&#39; }

The code is as follows:

    var fs = require(&#39;fs&#39;);
    fs.writeFile(&quot;tmp/test.txt&quot;, &quot;Hey there!&quot;, function(err) {
        if(err) {
            console.log(err);
        } else {
            console.log(&quot;The file was saved!&quot;);
        }
    }); 

Can anybody help me in finding out how to make Node.js create the directory structure if it does not exits for writing to a file?

Content Type	Original Author	Original Content on Stackoverflow
Question	Rithu	View Question on Stackoverflow
Solution 1 - Javascript	Ramya	View Answer on Stackoverflow
Solution 2 - Javascript	George	View Answer on Stackoverflow
Solution 3 - Javascript	nickf	View Answer on Stackoverflow
Solution 4 - Javascript	vusan	View Answer on Stackoverflow

Go back button in a page

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Solution 3 - Javascript

Solution 4 - Javascript

What does "258EAFA5-E914-47DA-95CA-C5AB0DC85B11" means in WebSocket Protocol

How can I select an element by ID with jQuery using regex?

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