Your question involves two closely related but separate standards, HTTP and HTML.  The PUT and DELETE methods are part of HTTP. In HTTP they have obvious use in RESTful interfaces, and other services which build on HTTP such as Webdav.

HTML up to version 4 only defines the use of POST and GET for forms. HTML5 at this time appears as though it may support the further methods. [note, support is not included in the current w3 draft]

Any current browser support (I&#39;m not directly aware of any) will be very limited and only really useful as an experiment at the bleeding edge.

GET, POST, PUT and DELETE (there are others) are a part of the HTTP standard, but you are limited to GET and POST in HTML forms at this time.

As Andrew mentioned, you can use PUT and DELETE in AJAX requests; however, this only works in some browsers (see http://api.jquery.com/jQuery.ajax/).

No, `GET` &amp; `POST` are the only valid HTTP method values for the `method` attribute. See the [HTML spec][1] for more information.

I _believe_ you can use them in AJAX requests, though.


  [1]: https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#attr-fs-method

I am working on a project in which I am tracking number of clicks on a topic.

I am using mongodb and I have to group number of click by date( i want to group data for 15 days).


I am having data store in following format in mongodb

    { 
       &quot;_id&quot; : ObjectId(&quot;4d663451d1e7242c4b68e000&quot;), 
      &quot;date&quot; : &quot;Mon Dec 27 2010 18:51:22 GMT+0000 (UTC)&quot;, 
      &quot;topic&quot; : &quot;abc&quot;, 
      &quot;time&quot; : &quot;18:51:22&quot;
    }
    { 
        &quot;_id&quot; : ObjectId(&quot;4d6634514cb5cb2c4b69e000&quot;), 
        &quot;date&quot; : &quot;Mon Dec 27 2010 18:51:23 GMT+0000 (UTC)&quot;, 
        &quot;topic&quot; : &quot;bce&quot;, 
        &quot;time&quot; : &quot;18:51:23&quot;
    }


i want to group number of clicks on topic:abc by days(for 15 days)..i know how to group that but how can I group by date which are stored in my database

I am looking for result in following format

    [
      {
        &quot;date&quot; : &quot;date in log&quot;,
        &quot;click&quot; : 9 
      },  
      {
        &quot;date&quot; : &quot;date in log&quot;,
        &quot;click&quot; : 19
      },  
    ]

I have written code but it will work only if date are in string (code is here http://pastebin.com/2wm1n1ix)
...please guide me how do I group it


group by dates in mongodb 

I want to override mouseReleaseEvent with a bunch of QActions and QMenus...


    connect(action1, SIGNAL(triggered()), this, SLOT(onStepIncreased()));

    connect(action5, SIGNAL(triggered()), this, SLOT(onStepIncreased()));

    connect(action10, SIGNAL(triggered()), this, SLOT(onStepIncreased()));

    connect(action25, SIGNAL(triggered()), this, SLOT(onStepIncreased()));

    connect(action50, SIGNAL(triggered()), this, SLOT(onStepIncreased()));



So I want to pass an argument to the slot `onStepIncreased` (as you can imagine they are 1,5,10,25,50). Do you know how I can do it?

Passing an argument to a slot

Assuming my web application has full support of PUT and DELETE on the server side, should I make use of them? 

Basically my question is how many browsers support this:

    &lt;form method=&quot;PUT&quot;&gt;

or

    &lt;form method=&quot;DELETE&quot;&gt;

Is there any benefits to using these two HTTP Methods other than being REST-compliant? (assuming the replacement for these two methods is the commonly used POST)

Should PUT and DELETE be used in forms?

Assuming my web application has full support of PUT and DELETE on the server side, should I make use of them?
Basically my question is how many browsers support this:
<pre><code class="hljs language-ini">&#x3C;form method="PUT">
</code></pre>
or
<pre><code class="hljs language-ini">&#x3C;form method="DELETE">
</code></pre>
Is there any benefits to using these two HTTP Methods other than being REST-compliant? (assuming the replacement for these two methods is the commonly used POST)

Currently the onChange event on my range inputs is firing at each step.

Is there a way to stop this event from firing until the user has let go of the slider?

I&#39;m using the range to create a search query. I want to be able to run the search every time the form is changed but issuing a search request at each step of the slider&#39;s movement is too much.

----------

Here&#39;s the code as it stands:

HTML:

    &lt;div id=&quot;page&quot;&gt;
        &lt;p&gt;Currently viewing page &lt;span&gt;1&lt;/span&gt;.&lt;/p&gt;
        &lt;input class=&quot;slider&quot; type=&quot;range&quot; min=&quot;1&quot; max=&quot;100&quot; step=&quot;1&quot; value=&quot;1&quot; name=&quot;page&quot; /&gt;
    &lt;/div&gt;

JavaScript:

    $(&quot;.slider&quot;).change(function() {
        $(&quot;#query&quot;).text($(&quot;form&quot;).serialize());
    });

Does that help?

onChange event for HTML5 range

I know vertical alignment is always asked about, but I don&#39;t seem to be able to find a solution for this particular example. I&#39;d like the text centered within the element, not the element centered itself:

&lt;!-- begin snippet: js hide: false console: false babel: false --&gt;

&lt;!-- language: lang-css --&gt;

    li a {
        width: 300px;
        height: 100px;
        margin: auto 0;
        display: block;
        background: red;
    }

&lt;!-- language: lang-html --&gt;

    &lt;ul&gt;
        &lt;li&gt;&lt;a href=&quot;&quot;&gt;I would like this text centered vertically&lt;/a&gt;&lt;/li&gt;
    &lt;/ul&gt;

&lt;!-- end snippet --&gt;

Is there really no CSS property for this? I&#39;d be willing to add a `&lt;span&gt;` in but I really don&#39;t want to add any more markup than that.

Vertical align text in block element

By default, iOS’s keyboard sets the first letter in text form fields (including `type=email`) to uppercase. (At least prior to iOS 5.)

Is there any way to disable the autocapitalization?

How do you turn off auto-capitalisation in HTML form fields in iOS?

Reading [some][1] [related][2] [questions][3] made me think about the theoretical nature of HTML.

I&#39;m not talking about XHTML-like code here. I&#39;m talking about stuff like this crazy piece of markup, which is perfectly valid HTML(!)

    &lt;!DOCTYPE html PUBLIC &quot;-//W3C//DTD HTML 4.01//EN&quot;&gt;
    &lt;html&lt;head&gt;
    &lt;title//
    &lt;p ltr&lt;span id=p&gt;&lt;/span&lt;/p&gt;
    &lt;/&gt;



So given the enormous complexity that SGML injects here, is HTML a context-free language? Is it a formal language anyway? With a grammar?

What about HTML5?

&lt;sub&gt;
I&#39;m new to the concept of formal languages, so please bear with me. And yes, I have read the wikipedia article ;)
&lt;/sub&gt;


  [1]: https://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags/1758162#1758162
  [2]: https://stackoverflow.com/questions/4933611/can-extended-regex-implementations-parse-html/4934590#4934590
  [3]: https://stackoverflow.com/questions/590747/using-regular-expressions-to-parse-html-why-not/590789#590789

Is HTML a context-free language?

Currently I&#39;m getting the selected text in the browser doing this:

    window.getSelection();

Now I need to show a tooltip above that text when pressing a custom key(note that the mouse could not be over the text anymore), so in order to do that I need the absolute position of that selected text.

Is there a way to do that, maybe wrapping that text inside a tag and then getting the offsets? It just has to work in Chrome, not all browsers.


Getting selected text position

I looked in many questions about cookies but I didn&#39;t find an answer on my problem. I have following scenario:

A user creates a login on *example.com* and should get a cookie but only for the subdomain *fuu.example.com*. I generate following HTTP header part:

    Set-Cookie: name=TestUser; Domain=fuu.example.com; Path=/; secure; HttpOnly 

But when I make a request to *https://fuu.example.com*, the cookie will be not added to the request. I wonder if it is possible that *example.com* sets a cookie for `fuu.example.com`. I know that it is possible that *example.com* set a cookie for `.example.com` also for all subdomains for *example.com* but that&#39;s not what I want. 

How do I set a cookie for a subdomain? I am not seeing the cookie in a request to the subdomain.

Domain set cookie for subdomain

In a blog post I use the following PHP to set the content-type of a response:

    header(&#39;content-type: application/json; charset=utf-8&#39;);

I just got a comment on that post saying that `content-type` needs to be capitalized, `Content-type`. Is this correct? It seems to work for me with all lower-case, and I assumed the HTTP headers were case-insensitive. Or does it just work because browsers are nice?

Are HTTP headers case-sensitive?

For my authentication process I create a unique token when a user logs in and put that into a cookie which is used for authentication.

So I would send something like this from the server:

    Set-Cookie: token=$2a$12$T94df7ArHkpkX7RGYndcq.fKU.oRlkVLOkCBNrMilaSWnTcWtCfJC; path=/;

Which works on all browsers. Then to delete a cookie I send a similar cookie with the `expires` field set for January 1st 1970

    Set-Cookie: token=$2a$12$T94df7ArHkpkX7RGYndcq.fKU.oRlkVLOkCBNrMilaSWnTcWtCfJC; path=/; expires=Thu, Jan 01 1970 00:00:00 UTC; 

And that works fine on Firefox but doesn&#39;t delete the cookie on IE or Safari.

So what is the best way to delete a cookie (without JavaScript preferably)? The set-the-expires-in-the-past method seems bulky. And also why does this work in FF but not in IE or Safari?


  [1]: http://www.mindrot.org/projects/py-bcrypt/

Correct way to delete cookies server-side

So in my code I want to detect if my login page is being called http, and redirect it to https.

I know there are non code ways to skin this cat, but for frustrating technical reasosn I&#39;m backed into doing it in code.

                if (!Request.IsSecureConnection)
                {
                    string redirectUrl = Request.Url.ToString().Replace(&quot;http:&quot;, &quot;https:&quot;);
                    Response.Redirect(redirectUrl);
                }

So I drop this in my `Page_Load(...)`, make sure my debugger uses real IIS, not VS2008s IIS, and hit debug.

Inthe debugger, waltz along, hit 
Response.Redirect(&quot;https://localhost/StudentPortal3G/AccessControl/AdLogin.aspx&quot;), 
hit f5.

Get &quot;Internet Explorere Cannot Display the webpage, url is HTTP, not HTTPS.
Not getting an informative error... same thing happens not running in the debugger.

So what am I missing? it does not appear to be rocket science, I&#39;ve seen similar code on lots of blogs...

What am I doing wrong? I figure it has to be a totally obvious Rookie mistake, but I&#39;m not seeing it.

asp.net c# redirecting from http to https

Why should I use REST if I can get my job done with only post and get requests?

Why we should use REST?

It is unclear to me when you should and should not return a HTTP 412: Precondition Failed, error for a web service?  I am thinking of using it when validating data.  For example, if a client POST&#39;s XML data and that data is missing a required data element, then responding with a 412 and a description of the error.

Does that align with the spirit of responding with an HTTP 412, or should something else be used (e.g. another http error code or web application exception)?

When is it appropriate to respond with a HTTP 412 error?

When designing an API for our web app, we&#39;ll use the their subdomain as the &#39;username&#39; and generate an API key/shared secret. Firstly, is it ok to use the subdomain as the username? I don&#39;t see the benefit of generating another key.

Different APIs seem to do one of two things:

1. **Use HTTP Basic Authentication with SSL**

In every request the username is set to the subdomain and the password to the API key. Since we&#39;re using SSL then this should be safe from spoofing.

Notable APIs: **[Google Checkout][1], [Freshbooks][2], [GitHub][3], [Zendesk][4]**

2. **Create a Signature of the Request with the Shared Secret**

Normally achieved by ordering the key/value pairs and using HMAC-SHA1 with the shared secret to generate the signature. The signature is then sent with the request and verified at the other end.

Notable APIs: **[Google Checkout][5], [Amazon AWS][6]**

PS: thats no mistake, Google Checkout supports both

**Edit:** Just read that OAuth 2 is dropping signatures in favour of sending a username/password via SSL.

Any opinions from anyone on what to pick: SSL vs Signature?


  [1]: http://checkout.google.com/support/sell/bin/answer.py?hl=en&amp;answer=57519
  [2]: http://developers.freshbooks.com/
  [3]: http://develop.github.com/p/general.html
  [4]: http://www.zendesk.com/api/rest-introduction
  [5]: http://checkout.google.com/support/sell/bin/answer.py?hl=en&amp;answer=57519
  [6]: http://docs.amazonwebservices.com/AmazonS3/latest/dev/index.html?RESTAuthentication.html

Securing an API: SSL &amp; HTTP Basic Authentication vs Signature

I&#39;m designing a public API to my company&#39;s data. We want application developers to sign up for an API key so that we can monitor use and overuse.

Since the API is REST, my initial thought is to put this key in a custom header. This is how I&#39;ve seen Google, Amazon, and Yahoo do it. My boss, on the other hand, thinks the API is easier to use if the key becomes merely a part of the URL, etc. &quot;http://api.domain.tld/longapikey1234/resource&quot;. I guess there is something to be said for that, but it violates the principle of the URL as a simple address of what you want, and not how or why you want it.

Would you find it logical to put the key in the URL? Or would you rather not have to manually set HTTP headers if writing a simple javascript frontend to some data?

Place API key in Headers or URL

I&#39;m implementing a REST service in PHP. This service should be able to support multiple input and output formats (JSON, XML). For that reason I want to check the request headers *&quot;Accept&quot;* and *&quot;Content-Type&quot;* for the type of content sent and requested by the client.

Accessing the *&quot;Accept&quot;* header is a simple as using `$_SERVER[&#39;HTTP_ACCEPT&#39;]`. But accessing the *&quot;Content-Type&quot;* header seems to be a difficult task. I searched the PHP documentation and the web, but the only solution offered was the use of the PHP function `apache_request_headers()` which is only supported when PHP is installed as an Apache module, which is not true in my case.

So my question now: How can I access the header &quot;Content-Type&quot; of a request?

Get &quot;Content-Type&quot; header of request in PHP

I&#39;m trying to make a horizontal rule with some text in the middle.
For example:


----------------------------------- my title here -----------------------------

Is there a way to do that in CSS? Without all the &quot;-&quot; dashes obviously.

CSS technique for a horizontal line with words in the middle

there is an if statement on my company&#39;s website that makes one web page imcompatible with firefox

    if(event.srcElement.getAttribute(&quot;onclick&quot;) == null){ 
    ...code..
    document.mainForm.submit();
    }

I&#39;ve commented out the if statement conditions and now its working with forefox. My question is, what is event.srcElement.getAttribute(&quot;onclick&quot;), is it important, would it cause problems in the future. also, is there something similar i can replace the condition with so that it works on firefox?


Edit:

     function gotoRDManagerPT(PTId, bDDetailId) {
    		if(!proceed()) return false;
    		var target = event.target || event.srcElement; 
    		if(event.target.getAttribute(&quot;onclick&quot;) == null) { 
    			document.mainForm.displayRDManagerPT.value = &quot;true&quot;;
    			document.mainForm.PTId.value = PTId;
    			document.mainForm.bDDetailId.value = bDDetailId;
    			document.mainForm.submit();
    		}
    	}

How can I make event.srcElement work in Firefox and what does it mean?

I am eager to start using Html5 in particular the `&lt;header&gt;/&lt;footer&gt;/&lt;article&gt;/&lt;nav&gt;` tags.

What happens if the browser doesn&#39;t support these?

Also I need to style these so: For Example: The `nav` has borders and margins etc. You know standard CSS stuff.

So if I style them using the `nav` tag then IE7 &amp; IE8 etc are going to ignore this?


header/footer/nav tags - what happens to these in IE7, IE8 and browsers than don&#39;t support HTML5?

I have a drop down navigation menu in which some of the title should not navigate to other page when clicked(these title open a drop down menu when clicked on) while others should navigate (these dont have dropdown and navigate directly).However, both types have `href` defined to them

To solve this i added the following css for the former type of titles

    pointer-events: none;

and it is working fine.But since this property is not supported by IE, i am looking for some work-around.
The annoying thing is that **i don&#39;t have access and privilege to change the HTML and JavaScript code** completely.

Any ideas?

css &#39;pointer-events&#39; property alternative for IE

What are all the browsers that support the `window.postMessage` call now? I am looking for browsers that support it natively, not through an iFrame hack.

Content Type	Original Author	Original Content on Stackoverflow
Question	Earlz	View Question on Stackoverflow
Solution 1 - Html	leebriggs	View Answer on Stackoverflow
Solution 2 - Html	BMiner	View Answer on Stackoverflow
Solution 3 - Html	Andrew Marshall	View Answer on Stackoverflow

Should PUT and DELETE be used in forms?

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

Solution 3 - Html

Passing an argument to a slot

group by dates in mongodb

Attributions