Yes, the limit is 5MB per domain.
Your string can be as long as you want. The total usage must, however, be under 5 MB.

http://dev.w3.org/html5/webstorage/

http://www.stackoverflow.com/questions/2747285/html5-localstorage-restrictions-and-limits

I am using the AFNetworking library. I can&#39;t figure out how to download a file and save it to the documents directory.

How to download a file and save it to the documents directory with AFNetworking?

There are multiple places in an Open Source Project (OSP) code I contribute, where it has to be determined if an element in a collection satisfies a certain condition.

I&#39;ve seen the use of LINQ expression `Any(lambda expression)` in some cases and `FirstOrDefault(lambda expression) != null` in others but never given a thought about it.

I have reached now a point where I have to do some iterations to collections made from  queries to a DB and want to optimize the runtime.

So I figured that `FirstOrDefault(lambda expression) != null` should be faster than `Any(lambda expression)`,right?

In the case of `FirstOrDefault(lambda expression) != null`, the iteration (probably) stops when it finds an element that satisfies the condition (worse case scenario it iterates through the entire collection and returns `null`).

In the case of `Any(lambda expression)` I imagine that the iteration continues to the end of the collection even if an element that satisfies the condition is found.

Edit: The above is not true as Jackson Pope mentioned and linked the related MSDN article.

Are my thoughts correct or am I missing something?


Performance of LINQ Any vs FirstOrDefault != null

Is there any limit (up to the amount of local storage available) for the key when using localStorage?

i.e. can I do something like:

    localStorage.setItem(&quot;pretend that this is a 1MB string&quot;, &quot;whatever&quot;); 



Is there a limit to the key length for localStorage?

Is there any limit (up to the amount of local storage available) for the key when using localStorage?
i.e. can I do something like:
<pre><code class="hljs language-javascript">localStorage.setItem("pretend that this is a 1MB string", "whatever"); 
</code></pre>

For `&lt;input type=&quot;number&quot;&gt;` element, `maxlength` is not working. How can I restrict the `maxlength` for that number element?

How can I set max-length in an HTML5 &quot;input type=number&quot; element?

How can I display a string that contains HTML tags in twig template?

My PHP variable contains this html and text:

    $word = &#39;&lt;b&gt; a word &lt;/b&gt;&#39;;

When I do this in my twig template:

    {{ word }}

I get this:

    &amp;lt;b&amp;gt; a word &amp;lt;b&amp;gt;

I want this instead:

    &lt;b&gt; a word &lt;/b&gt;

Is it possible to get this easily?

How to display string that contains HTML in twig template?

I have this button image:  
![enter image description here][1]

I was wondering whether it would be possible to make a simple 

    &lt;a href=&quot;&quot;&gt;some words&lt;/a&gt; 

and style that link to appear as that button?

If it is possible, how do I do that?


  [1]: http://i.stack.imgur.com/zfJlq.png

How to make an HTML anchor tag (or link) look like a button?

Consider the following example: ([live demo][1])

HTML:

    &lt;div&gt;div&lt;/div&gt;
    &lt;iframe&gt;&lt;/iframe&gt;

CSS:

    div, iframe {
        width: 100px;
        height: 50px;
        margin: 0 auto;
        background-color: #777;
    }

Result:

![enter image description here][2]

Why the `iframe` is not centrally aligned like the `div`? How could I centrally align it?


  [1]: http://jsfiddle.net/wYNSu/
  [2]: http://i.stack.imgur.com/d82gb.png

How to center an iframe horizontally?

I have some HTML:

    &lt;div align=&quot;center&quot; style=&quot;border:1px solid red&quot;&gt;
    This is some text in a div element!
    &lt;/div&gt;

The Div is changing the spacing on my document, so I want to use a span for this instead.

But span is not centralizing the contents:

    &lt;span style=&quot;border:1px solid red;align=center&quot;&gt;
    This is some text in a div element!
    &lt;/span&gt;

How do I fix this?



EDIT:

My complete code:

    &lt;html&gt;
    &lt;body&gt;
    
    &lt;p&gt;This is a paragraph. This text has no alignment specified.&lt;/p&gt;
    
    &lt;span style=&quot;border:1px solid red;text-align=center&quot;&gt;
      This is some text in a div element!
    &lt;/span&gt;
    
    &lt;/body&gt;
    &lt;/html&gt;



HTML span align center not working?

I&#39;m just wondering how to get all key values in `localStorage`.


----------


I have tried to retrieve the values with a simple JavaScript loop

    for (var i=1; i &lt;= localStorage.length; i++)  {
	   alert(localStorage.getItem(i))
    }

But it works only if the keys are progressive numbers, starting at 1.


----------


How do I get all the keys, in order to display all available data?



Get HTML5 localStorage keys

How long can I expect data to be kept in localStorage.  How long will an average user&#39;s localStorage data persist?  If the user doesn&#39;t clear it, will it last till a browser re-install?

Is this consistent across browsers?

When is localStorage cleared?

Where are sessionStorage and localStorage stored on the client&#39;s computer?  
Could you tell me the path?

Where the sessionStorage and localStorage stored?

I created a Chrome extension and am using localStorage for storing data.

I am accessing localStorage through &quot;background_page&quot;.

It works fine but how can I manually view its values? In Firefox you can use Firebug.

Anyone have any suggestions?

How to view or edit localStorage

How can I view the contents of HTML5 local storage in IE? Chrome and FireFox provide a way through their developer tools to view the contents of local storage but I couldn&#39;t find that information using IE9 developer tool.

Content Type	Original Author	Original Content on Stackoverflow
Question	chris	View Question on Stackoverflow
Solution 1 - Html	Aniket	View Answer on Stackoverflow

Is there a limit to the key length for localStorage?

Html Problem Overview

Html Solutions

Solution 1 - Html

Performance of LINQ Any vs FirstOrDefault != null

How to download a file and save it to the documents directory with AFNetworking?

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