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Is String.Format as efficient as StringBuilder
...lly:
public static string Format(IFormatProvider provider, string format, params object[] args)
{
if ((format == null) || (args == null))
{
throw new ArgumentNullException((format == null) ? "format" : "args");
}
StringBuilder builder = new StringBuilder(format.Length + (ar...
How to add line break for UILabel?
...ize:lineBreakMode:
Reference, Replacement for deprecated sizeWithFont: in iOS 7?
CGSize labelSize = [label.text sizeWithAttributes:@{NSFontAttributeName:label.font}];
label.frame = CGRectMake(
label.frame.origin.x, label.frame.origin.y,
label.frame.size.width, labelSize.height);
...
How to send an email from JavaScript
...ail client:
window.open('mailto:test@example.com');
There are also some parameters to pre-fill the subject and the body:
window.open('mailto:test@example.com?subject=subject&body=body');
Another solution would be to do an ajax call to your server, so that the server sends the email. Be c...
How do I use shell variables in an awk script?
... v1.5
Using -v (The best way, most portable)
Use the -v option: (P.S. use a space after -v or it will be less portable. E.g., awk -v var= not awk -vvar=)
variable="line one\nline two"
awk -v var="$variable" 'BEGIN {print var}'
line one
line two
This should be compatible with most a...
Is AsyncTask really conceptually flawed or am I just missing something?
...truly want parallel execution, you can use the executeOnExecutor(Executor, Params...) version of this method with THREAD_POOL_EXECUTOR; however, see commentary there for warnings on its use.
Both executeOnExecutor() and THREAD_POOL_EXECUTOR are Added in API level 11 (Android 3.0.x, HONEYCOMB).
T...
Why is early return slower than else?
...ng without_else() and the difference disappears:
>>> def no_else(param=False):
if param:
return 1
return 0
>>> T(lambda : no_else()).repeat()
[0.3359846013948413, 0.29025818923918223, 0.2921801513879245]
>>> T(lambda : no_else(True)).repeat()
[0.381039559...
How to hide the “back” button in UINavigationController?
Do you know how to hide the 'back' button in a UINavigationController?
Also, how to show it back, but I guess that's very similar to hiding it...
...
How do I get the day of the week with Foundation?
...
outputs current day of week as a string in locale dependent on current regional settings.
To get just a week day number you must use NSCalendar class:
NSCalendar *gregorian = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDateComponents *comps = [gregorian co...
Android Paint: .measureText() vs .getTextBounds()
...StringBounds
Now your study checks where these methods differ.
After some param checks, both call function SkPaint::measureText in Skia Lib (part of Android), but they both call different overloaded form.
Digging further into Skia, I see that both calls result into same computation in same functio...
How can I get a precise time, for example in milliseconds in Objective-C?
...meInterval is in seconds, but it uses the double to give you greater precision.
In order to calculate millisecond time accuracy, you can do:
// Get a current time for where you want to start measuring from
NSDate *date = [NSDate date];
// do work...
// Find elapsed time and convert to millisecon...