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Running a cron every 30 seconds
...ndaries, keep commands in sync.
* * * * * /path/to/executable param1 param2
* * * * * ( sleep 30 ; /path/to/executable param1 param2 )
You'll see I've added comments and formatted to ensure it's easy to keep them synchronised.
Both cron jobs actually run every minute but the latter one...
Autoresizing issue of UICollectionViewCell contentView's frame in Storyboard prototype cell (Xcode 6
I'm using Xcode 6 Beta 3, iOS 8 SDK. Build Target iOS 7.0 using Swift. Please refer to my problem step by step with screenshots below.
...
JavaScript query string [closed]
...t(m[1])] = decodeURIComponent(m[2]);
}
return result;
}
// ...
var myParam = getQueryString()["myParam"];
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iPhone system font
...es that this
change is related to the iPhone 4
display rather than the iOS 4
operating system and older iPhone
models running iOS 4 still use
Helvetica as the system font.
iPod models released prior to the
iPhone use either Chicago, Espy Sans,
or Myriad and use Helvetica after the...
Prepend a level to a pandas MultiIndex
...ltiIndex:
"""
Expand a (multi)index by adding a level to it.
:param old_index: The index to expand
:param name: The name of the new index level
:param value: Scalar or list-like, the values of the new index level
:param loc: Where to insert the level in the index, 0 is at th...
Java: Path vs File
For new applications written in Java 7, is there any reason to use a java.io.File object any more or can we consider it deprecated?
...
Pass correct “this” context to setTimeout callback?
...pared to function expressions and lexically binds the this value [...].
(param1, param2, ...rest) => { statements }
In your case, try this:
if (this.options.destroyOnHide) {
setTimeout(() => { this.tip.destroy(); }, 1000);
}
jQuery
If you are already using jQuery 1.4+, there's a ...
Function overloading in Javascript - Best practices
...
The best way to do function overloading with parameters is not to check the argument length or the types; checking the types will just make your code slow and you have the fun of Arrays, nulls, Objects, etc.
What most developers do is tack on an object as the last arg...
How do I check if a string contains another string in Objective-C?
...SString *string = @"hello bla bla";
if ([string rangeOfString:@"bla"].location == NSNotFound) {
NSLog(@"string does not contain bla");
} else {
NSLog(@"string contains bla!");
}
The key is noticing that rangeOfString: returns an NSRange struct, and the documentation says that it returns the st...
Using a .php file to generate a MySQL dump
...f.
That external command will :
be a call to mysqldump, with the right parameters,
and redirect the output to a file.
For example :
mysqldump --user=... --password=... --host=... DB_NAME > /path/to/output/file.sql
Which means your PHP code would look like this :
exec('mysqldump --user...