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How do I sort an array of hashes by a value in the hash?
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Actually, Array#sort_by! is new in Ruby 1.9.2. Available today to all Ruby version by requiring my backports gem too :-)
– Marc-André Lafortune
Jul 1 '10 at 4:19
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How does '20 seconds' work in Scala?
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There are a few things going on.
First, Scala allows dots and parens to be omitted from many method calls, so 20 seconds is equivalent to 20.seconds()*.
Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches ...
How to allocate aligned memory only using the standard library?
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Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024);
free(mem);
}
Fixed answer
{
void *mem = malloc(1024+15);
void *ptr = ((uintptr_t)mem+15) & ~ (uintptr_t)0x0...
How to prevent a background process from being stopped after closing SSH client in Linux
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I would recommend using GNU Screen. It allows you to disconnect from the server while all of your processes continue to run. I don't know how I lived without it before I knew it existed.
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Detect 7 inch and 10 inch tablet programmatically
Is there a way to programmatically find whether the device the app is installed on is a 7 inch tablet or a 10 inch tablet?
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using jquery $.ajax to call a PHP function
This may be a simple answer, but I'm using jQuery's $.ajax to call a PHP script. What I want to do is basically put that PHP script inside a function and call the PHP function from javascript.
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Does the APNS device token ever change, once created?
...hat device.
If the user restores backup data to a new device or reinstalls the
operating system, the device token changes.
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git still shows files as modified after adding to .gitignore
...re saying that you need to commit after removing the cached files? That really seems counter-intuitive; these are files I do NOT want to commit. And I do not want them deleted from the repository (I just want them to no longer be hanging around cluttering my git status). Or am I just really confu...
Gesture recognizer and button actions
...nizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
// Disallow recognition of tap gestures in the segmented control.
if ((touch.view == yourButton)) {//change it to your condition
return NO;
}
return YES;
}
hope it will help
Edit
As Daniel noted you must con...
How can HTML5 “replace” Flash? [closed]
...endered, and the javascript code which manipulates the HTML and CSS dynamically.
Furthermore, HTML5 not only has the standard text elements, but also <canvas> on which 2d graphics can be drawn, and <video> elements which embeds the video (as the name suggests).
So, in a full-fledged ...