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C# Lambda expressions: Why should I use them?
... to the function without adding parameters to the function or creating one-time-use objects.
Expression trees are a very powerful new feature of C# 3.0 that allow an API to look at the structure of an expression instead of just getting a reference to a method that can be executed. An API just has ...
Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
...
Why would you just copy the API code? Many times the API is "human-unreadable".
– matua
Jul 7 at 8:55
...
How do I check if a string contains a specific word?
... $a)) {
echo 'true';
}
On the performance side, strpos is about three times faster. When I did one million compares at once, it took preg_match 1.5 seconds to finish and for strpos it took 0.5 seconds.
Edit:
In order to search any part of the string, not just word by word, I would recommend usi...
const char* concatenation
...two);
The C++ way:
std::string buf(one);
buf.append(two);
The compile-time way:
#define one "hello "
#define two "world"
#define concat(first, second) first second
const char* buf = concat(one, two);
share
|...
Why do we need virtual functions in C++?
...nding". Which implementation of the method is used gets decided at compile time based on the type of the pointer that you call through.
With "virtual" you get "late binding". Which implementation of the method is used gets decided at run time based on the type of the pointed-to object - what it was...
Django Setup Default Logging
...rue,
'formatters': {
'standard': {
'format': '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
},
},
'handlers': {
'default': {
'level':'DEBUG',
'class':'logging.handlers.RotatingFileHandler',
'filename': 'logs/myl...
How can I get the full object in Node.js's console.log(), rather than '[Object]'?
...util.inspect(); note that console.dir() can only ever print 1 object at a time, however. To print with unlimited depth, use console.dir(myObject, { depth: null }).
– mklement0
Feb 24 '16 at 0:02
...
How do I get an animated gif to work in WPF?
...ion = new Int32Animation(0, _gifDecoder.Frames.Count - 1, new Duration(new TimeSpan(0, 0, 0, _gifDecoder.Frames.Count / 10, (int)((_gifDecoder.Frames.Count / 10.0 - _gifDecoder.Frames.Count / 10) * 1000))));
_animation.RepeatBehavior = RepeatBehavior.Forever;
this.Source = _gifDecode...
JPA EntityManager: Why use persist() over merge()?
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@None It could because it’s a RuntimeException, but it’s not mentioned in the Javadoc.
– Martin
Oct 16 '19 at 18:20
add a comment
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How to shut down the computer from C#
... I'm using this method to shut down windows, and two out of three times it'll tell me I lack permissions, but the third time, it sot of "gives up" and restarts the computer anyway. What's up with that?
– DTI-Matt
Jun 26 '12 at 20:16
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