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How do I check if a string contains a specific word?
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You can use the strpos() function which is used to find the occurrence of one string inside another one:
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
Note that the use of !== false is deliberate (neither != false nor === true will return the desired result); strpos()...
What does the Reflect object do in JavaScript?
...iding the need for a global Proxy binding.
Most methods in this module map one-to-one onto Proxy traps. Proxy handlers need these methods to conveniently forward operations, as shown below.
So, the Reflect object provides a number of utility functions, many of which appear to overlap with ES5 me...
Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
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One more minor thing that tripped me up: in boost, destructor of a running thread detaches it ( boost.org/doc/libs/1_47_0/doc/html/thread/… ), while in C++, destructor of a running thread calls terminate() (FDIS 30.3.1.3)
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Animate change of view controllers without using navigation controller stack, subviews or modal cont
... }];
}
Example use in a view controller
- (IBAction)flipToNextView
{
AnotherViewController *anotherVC = [[AnotherVC alloc] init...];
MyAppDelegate *appDelegate = (MyAppDelegate *)[UIApplication sharedApplication].delegate;
[appDelegate transitionToViewController:another...
Getting the last argument passed to a shell script
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This is a bit of a hack:
for last; do true; done
echo $last
This one is also pretty portable (again, should work with bash, ksh and sh) and it doesn't shift the arguments, which could be nice.
It uses the fact that for implicitly loops over the arguments if you don't...
How to continue a task when Fabric receives an error
...define a task to run on several remote servers, if the task runs on server one and exits with an error, Fabric will stop and abort the task. But I want to make fabric ignore the error and run the task on the next server. How can I make it do this?
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Side-by-side plots with ggplot2
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One downside of the solutions based on grid.arrange is that they make it difficult to label the plots with letters (A, B, etc.), as most journals require.
I wrote the cowplot package to solve this (and a few other) issues, s...
How to replace multiple strings in a file using PowerShell
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One option is to chain the -replace operations together. The ` at the end of each line escapes the newline, causing PowerShell to continue parsing the expression on the next line:
$original_file = 'path\filename.abc'
$destin...
What is the best way to initialize a JavaScript Date to midnight?
...rs(0,0,0,0);
That will set the time to 00:00:00.000 of your current timezone, if you want to work in UTC time, you can use the setUTCHours method.
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How do you manage databases in development, test, and production?
...ersion is readable also at http://martinfowler.com/articles/evodb.html
In one PHP+MySQL project I've had the database revision number stored in the database, and when the program connects to the database, it will first check the revision. If the program requires a different revision, it will open a...