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Is there a HTML opposite to ?
...ag in HTML that will only display its content if JavaScript is enabled? I know <noscript> works the opposite way around, displaying its HTML content when JavaScript is turned off. But I would like to only display a form on a site if JavaScript is available, telling them why they can't use th...
Regular expression to allow spaces between words
...tl;dr
Just add a space in your character class.
^[a-zA-Z0-9_ ]*$
Now, if you want to be strict...
The above isn't exactly correct. Due to the fact that * means zero or more, it would match all of the following cases that one would not usually mean to match:
An empty string, "".
A string...
The request was aborted: Could not create SSL/TLS secure channel
...// Use SecurityProtocolType.Ssl3 if needed for compatibility reasons
And now, it works perfectly.
ADDENDUM
As mentioned by Robin French; if you are getting this problem while configuring PayPal, please note that they won't support SSL3 starting by December, 3rd 2018. You'll need to use TLS. He...
“unrecognized selector sent to instance” error in Objective-C
...auses the numberButtonClicked: method to be sent to another object that is now occupying the memory that the view controller was previously occupying...
Make sure you're properly retaining/releasing your view controller.
sh...
How do I access the host machine from the guest machine? [closed]
...
Superb. I didn't know about the .local bit. Thanks!
– wentbackward
Jun 1 '09 at 17:24
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The builds tools for v120 (Platform Toolset = 'v120') cannot be found
... this error, you may be invoking the wrong MSBuild. With VS2013, Microsoft now includes MSBuild as part of Visual Studio. See this Visual Studio blog posting for details.
In particular, note the new location of the binaries:
On 32-bit machines they can be found in: C:\Program
Files\MSBuild\12...
CSS transition shorthand with multiple properties?
...ay property.
Edit: previously listed here were the compatibilities and known issues regarding transition. Removed for readability.
Bottom-line: just use it. The nature of this property is non-breaking for all applications and compatibility is now well above 94% globally.
If you still want to be...
Obtaining a powerset of a set in Java
...tains() would be O(n), etc.
Do you really need this?
EDIT:
This code is now available in Guava, exposed through the method Sets.powerSet(set).
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)
...o show object that was called after it was deallocated.
You should see now every call that has changed retain count of this object. This could be because sending directly retain/release messages as well as draining autorelease pools or inserting into NSArrays.
RefCt column shows retainCount aft...
How does SSL really work?
...ings they are allowed to sign (other certificates), and their public key.
Now if I have a copy of that Verisign certificate, I can use that to validate the signature on the server certificate for the website I want to visit. Easy, right?!
Well, not so fast. I had to get the Verisign certificate fr...