[According to the HTML5](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#attr-href) spec the empty fragment `#` and the special fragment `#top` will link to the top of the page.

    &lt;a href=&quot;#&quot;&gt;Go to top&lt;/a&gt;

    &lt;a href=&quot;#top&quot;&gt;Go to top&lt;/a&gt;

There is no need to create a matching anchor if you use these special fragment names.

You can try using javascript

`&lt;a onclick=&quot;scroll(0,0)&quot;&gt;`


Or you can use jQuery

    $(&quot;#Top&quot;).click(function(){
     scroll(0,0);
    });

I know that you said without using JavaScript, but I think that is really the only way to avoid using a real anchor.  The following jQuery will replace anchors with the `#top` href and perform a nice animated scroll to the top without the URL changing (see the [original author][1]&#39;s page for more info).

    $(document).ready(function() {
        $(&#39;a[href=#top]&#39;).click(function(){
            $(&#39;html, body&#39;).animate({scrollTop:0}, &#39;slow&#39;);
            return false;
        });
    })

[jsfiddle for completeness][2]

However, I would stick with [semantic HTML][3] and use anchors for their purpose so that the proper meaning can be interpreted by the maximum number of browsers.  Don&#39;t forget about people with disabilities that require screen readers or other special browsers.  Anchors are guaranteed to work.

In addition to that, Google [announced in 2009][4] some new indexing features that directly take advantage of in-page anchors to provide additional context that the Web searcher might be looking for.  In many cases, there might be a section of a page that a user is very interested in.  Google can provide a direct link to that anchor of the page for optimum relevance.

Bottom line from my point of view - don&#39;t dis the anchors.  Use them.


  [1]: http://www.electrictoolbox.com/jquery-scroll-top/
  [2]: http://jsfiddle.net/bYZaG/
  [3]: http://en.wikipedia.org/wiki/Semantic_HTML
  [4]: http://googlewebmastercentral.blogspot.ca/2009/09/using-named-anchors-to-identify.html

Another useful way of using the &lt;a&gt; anchor tag to get the top of the page is 

    &lt;a href=&#39;#top&#39;&gt; Go back to the top of the page.&lt;/a&gt;

using it like this makes your page automatically scroll to the top of the current page. Hope this is useful to someone.

`&lt;a href=&quot;?&quot;&gt;top&lt;/a&gt;` will get you there.

all:
here is my server memory info with &#39;free -m&#39;

                  total       used       free     shared    buffers     cached
     Mem:         64433       49259      15174          0          3         31
     -/+ buffers/cache:      49224      15209
     Swap:         8197        184       8012

my redis-server has used 46G memory, there is almost 15G memory left free

As my knowledge,fork is copy on write, it should not failed when there has 15G free memory,which is enough to malloc necessary kernel structures .

besides, when redis-server used 42G memory, bgsave is ok and fork is ok too.

Is there any vm parameter I can tune to make fork return success ?


redis bgsave failed because fork Cannot allocate memory

I&#39;ve been puzzling about this for a while and I&#39;ve looked around a bit, unable to find any discussion about the subject.

Lets assume I wanted to implement a trivial example, like a new looping construct: do..until

Written very similarly to do..while

    do {
        //Things happen here
    } until (i == 15)

This could be transformed into valid csharp by doing so:

    do {
        //Things happen here
    } while (!(i == 15))

This is obviously a simple example, but is there any way to add something of this nature?  Ideally as a Visual Studio extension to enable syntax highlighting etc.

Is there a way to implement custom language features in C#?

I have an HTML document that currently has some links to the top of the page using an anchor

    &lt;body id=&quot;topofpage&quot;&gt;
       ...
       &lt;a href=&quot;#topofpage&quot;&gt;Go to top&lt;/a&gt;

However, I don&#39;t like needing to create a useless id and how the &quot;#topofpage&quot; shows up in the URL after I click the link. Is there something else I can do to link to the top of the page without using Javascript? I tried removing the anchor completely with `&lt;a href=&quot;&quot;&gt;` but that causes the page to refresh.

Create a Link to the Top of a Web Page Without Using Anchors

I have an HTML document that currently has some links to the top of the page using an anchor
<pre><code class="hljs language-ini">&#x3C;body id="topofpage">
 ...
 &#x3C;a href="#topofpage">Go to top&#x3C;/a>
</code></pre>
However, I don't like needing to create a useless id and how the "#topofpage" shows up in the URL after I click the link. Is there something else I can do to link to the top of the page without using Javascript? I tried removing the anchor completely with <code>&#x3C;a href=""></code> but that causes the page to refresh.

I&#39;m having this code:
```html
&lt;ul&gt;
   &lt;div&gt;
   &lt;/div&gt;
&lt;/ul&gt;
```
I feel no issue in my browser rendering it. I have read this too somewhere that ``li`` should only be used as direct child of ``ul``.

Is this correct? Can&#39;t I use ``div`` as a direct child of ``UL``? Is there any documentation for the above confusion?

Edit: This link says I can http://css-tricks.com/forums/discussion/11593/divs-inside-uls/p1

Can I use div as a direct child of UL?

I want to simplify things in my jQuery Backbone.js web application. One such simplification is the behavior of my menu and dialog widgets.  

Previously I created the div boxes of my menus at start and hid them using `display: none; opacity:0;`.   When I needed a menu, I changed its style to `display:block` then used the jQuery ui position utility to position the div box (since elements with `display:none` cannot be positioned) and when it was done, finally changed its style to `opacity:1`.  

Now I want to just hide them with `visibility:hidden`, and when I need one, I use the position utility and then change the style to `visibility:visible`.  When I begin using this new approach, I will have around 10 div boxes throughout the web application session that are hidden but occupy space, in contrast to the previous div boxes hidden with `display:none`.  

What are the implications of my new approach? Does it effect browser performance in any regard? 

Performance differences between visibility:hidden and display:none

I need to find an index of element inside its container by object reference. Strangely, I cannot find an easy way. No jQuery please - only DOM.

    UL
     LI
     LI
     LI - my index is 2
     LI

Yes, I could assign IDs to each element and loop through all nodes to match the ID but it seems a bad solution. Isn&#39;t there something nicer? 

So, say I have an object reference to the third LI as in the example above. How do I know it is index 2?

Thanks.

JavaScript DOM: Find Element Index In Container

I have made a page in html5 with css3. It works fine on local (I dont use any server, just doubleclick in the index to open it).  
I want to put it in google drive. I have load all the documents needed, but when I try to open the html, I can only see the text (I mean, it is not being executing, I can see just the source code).
Any suggestion?

opening html from google drive

I am trying to set a new vale of a custom attribute of a div using [`attr()`](http://api.jquery.com/attr/). I found out it can be done using `.attr( attributeName, value )`, but when I try it it&#39;s not working.

Here is the part of my code I am interested in:

&lt;!-- language: lang-js --&gt;

    $(&#39;#amount&#39;).attr( &#39;datamin&#39;,&#39;1000&#39;)


and the *div* that has the custom attribute is 

&lt;!-- language: lang-html --&gt;

    &lt;div id=&quot;amount&quot; datamin=&quot;&quot;&gt;&lt;/div&gt;

&lt;br&gt;
Here is the whole example:

&lt;!-- language: lang-js --&gt;

    $(function() {
        $( &quot;#slider-range&quot; ).slider({
            range: true,
            min: &lt;?php echo $min_val;?&gt;,
            max: &lt;?php echo $max_val;?&gt;,
            values: [ &lt;?php echo $min_val;?&gt;, &lt;?php echo $max_val;?&gt; ],
            slide: function( event, ui ) {
                $( &quot;#amount&quot; ).html( &quot;&lt;?php echo $currency_chk_i;?&gt;&quot; + ui.values[ 0 ] + &quot; - &lt;?php echo $currency_chk_i;?&gt;&quot; + ui.values[ 1 ] );
    			
    			$(&#39;#amount&#39;).attr( &#39;datamin&#39;,&#39;1000&#39;);
    			
            },
    		change: function(event, ui) {
                // when the user change the slider
            },
            stop: function(event, ui) {
    		alert(ui.values[0]);
                // when the user stopped changing the slider
                
            }
        });
        $( &quot;#amount&quot; ).html( &quot;&lt;?php echo $currency_chk_i;?&gt;&quot; + $( &quot;#slider-range&quot; ).slider( &quot;values&quot;, 0 ) +
            &quot; - &lt;?php echo $currency_chk_i;?&gt;&quot; + $( &quot;#slider-range&quot; ).slider( &quot;values&quot;, 1 ) );
    		
    });

&lt;br&gt;
Can anyone point out where I am wrong or any other way out?


Setting new value for an attribute using jQuery

I have a page with some jQuery functions. The HTML on the page looks like so: 

    &lt;a href=&quot;#&quot; class=&quot;service&quot;&gt;Open&lt;/a&gt;

When I click the Open button a hidden panel slides out. The jQuery itself works great however when I click the button it also takes me to the top of the page. 

Is this the defualt behavior and how do I prevent every `href=&quot;#&quot;` from taking me to the top of the page. 

Note: I could add id&#39;s and tell the href to direct to that ID. I do not want to do that for various reasons (including adding unnecessary code).

href=&quot;#&quot; Going to Top of Page - Prevent?

I have a question that will be found very often. The problem is that nowhere can be found an explicit solution.

I have two problems regarding anchors.

The main goal should be to get a nice clean url without any hashes in it while using anchors to jump on a page.

So the structure of the anchors is:

    &lt;ul&gt;
        &lt;li&gt;&lt;a href=&quot;#one&quot;&gt;One&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href=&quot;#two&quot;&gt;Two&lt;/a&gt;&lt;/li&gt;
        &lt;li&gt;&lt;a href=&quot;#three&quot;&gt;Three&lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;
    
    &lt;div class=&quot;wrap&quot;&gt;
        &lt;a name=&quot;one&quot;&gt;text 1&lt;/a&gt;
        &lt;a name=&quot;two&quot;&gt;text 2&lt;/a&gt;
        &lt;a name=&quot;three&quot; class=&quot;box&quot;&gt;text 3&lt;/a&gt;
    &lt;/div&gt;

Okay, if you will click one of the links the url will automatically change to 

&gt; www.domain.com/page#1

At the end this should be just:

&gt; www.domain.com/page

So far, so good. Now the second thing is, when you search the internet for that problem you will find `javascript` as a solution.

I have found this function:

    function jumpto(anchor){
        window.location.href = &quot;#&quot;+anchor;
    }

and calling that function with:

    &lt;a onclick=&quot;jumpto(&#39;one&#39;);&quot;&gt;One&lt;/a&gt;

what will be the same like before. It will add the hash to the url. I also added

    &lt;a onclick=&quot;jumpto(&#39;one&#39;); return false;&quot;&gt;

without success. So if there is someone who could tell me how to solve this I really would appreciate.

Thanks a lot.

anchor jumping by using javascript

    &lt;a href=&quot;#/search?query={{address}}&quot; ng-repeat=&quot;address in addresses&quot;&gt;
      {{address}}
    &lt;/a&gt;

generates links that are not url encoded if I understand correctly. What is the proper way to encode `#/search?query={{address}}`?

Example address is `1260 6th Ave, New York, NY`.

How to generate url encoded anchor links with AngularJS?

Do any of you know how to nicely handle anchor hash linking in **AngularJS**?

I have the following markup for a simple FAQ-page

    &lt;a href=&quot;#faq-1&quot;&gt;Question 1&lt;/a&gt;
    &lt;a href=&quot;#faq-2&quot;&gt;Question 2&lt;/a&gt;
    &lt;a href=&quot;#faq-3&quot;&gt;Question 3&lt;/a&gt;
      
    &lt;h3 id=&quot;faq-1&quot;&gt;Question 1&lt;/h3&gt;
    &lt;h3 id=&quot;faq-2&quot;&gt;Question 2&lt;/h3&gt;
    &lt;h3 id=&quot;fa1-3&quot;&gt;Question 3&lt;/h3&gt;

When clicking on any of the above links AngularJS intercepts and routes me to a completely different page (in my case, a 404-page as there are no routes matching the links.)

My first thought was to create a route matching &quot;**/faq/:chapter**&quot; and in the corresponding controller check `$routeParams.chapter` after a matching element and then use jQuery to scroll down to it.

But then AngularJS shits on me again and just scrolls to the top of the page anyway.

So, anyone here done anything similar in the past and knows a good solution to it?

Edit: Switching to html5Mode should solve my problems but we kinda have to support IE8+ anyway so I fear it&#39;s not an accepted solution :/

How to handle anchor hash linking in AngularJS

Is it correct to use alt tag for an anchor link, something like

    &lt;a href=&quot;#&quot; class=&quot;test&quot; alt=&quot;Something&quot; src=&quot;sfasfs&quot; &gt;&lt;/a&gt;

Content Type	Original Author	Original Content on Stackoverflow
Question	hugomg	View Question on Stackoverflow
Solution 1 - Html	hugomg	View Answer on Stackoverflow
Solution 2 - Html	user1513192	View Answer on Stackoverflow
Solution 3 - Html	Sumo	View Answer on Stackoverflow
Solution 4 - Html	Vash	View Answer on Stackoverflow
Solution 5 - Html	Bret A. Lucas	View Answer on Stackoverflow

Create a Link to the Top of a Web Page Without Using Anchors

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

Solution 3 - Html

Solution 4 - Html

Solution 5 - Html

Is there a way to implement custom language features in C#?

redis bgsave failed because fork Cannot allocate memory

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