大约有 30,000 项符合查询结果（耗时：0.0450秒） [XML]
How to log source file name and line number in Python
...
Sure, check formatters in logging docs. Specifically the lineno and pathname variables.
%(pathname)s Full pathname of the source file where the logging call was issued(if available).
%(filename)s Filename portion of pathname.
%(module)s Module (name portion of filen...
What is the best way to compute trending topics or tags?
...
This problem calls for a z-score or standard score, which will take into account the historical average, as other people have mention, but also the standard deviation of this historical data, making it more robust than just using the aver...
Loop through an array in JavaScript
...ons
Too verbose
Imperative
Easy to have off-by-one errors (sometimes also called a fence post error)
2. Array.prototype.forEach
The ES5 specification introduced a lot of beneficial array methods, one of them, the Array.prototype.forEach and it gives us a concise way to iterate over an array:
c...
How to programmatically click a button in WPF?
...ormClick() method in WPF, is there a way to click a WPF button programmatically?
8 Answers
...
Can every recursion be converted into iteration?
...s a problem for existing C environments. Another example is the use of lexically nested functions and static scope, which Pascal supports but C doesn't.
In these circumstances, you might try to overcome political resistance to the original language. You might find yourself reimplementing Lisp badly...
Swift Beta performance: sorting arrays
...nt))
// [-1, 0, 2, 2, 5, 8, 1234]
// [-1, 0, 2, 2, 5, 8, 1234]
Both are called in the same program as written.
var x_swift = CInt[](count: n, repeatedValue: 0)
var x_c = CInt[](count: n, repeatedValue: 0)
for var i = 0; i < n; ++i {
x_swift[i] = CInt(random())
x_c[i] = CInt(random())
...
Kotlin: how to pass a function as parameter to another?
...
Since Kotlin 1.1 you can now use functions that are class members ("Bound Callable References"), by prefixing the function reference operator with the instance:
foo("hi", OtherClass()::buz)
foo("hi", thatOtherThing::buz)
foo("hi", this::buz)
...
Easier way to debug a Windows service
...e static void DebugMode()
{
Debugger.Break();
}
On your OnStart, just call this method:
public override void OnStart()
{
DebugMode();
/* ... do the rest */
}
There, the code will only be enabled during Debug builds. While you're at it, it might be useful to create a separate Build Co...
Run certain code every n seconds [duplicate]
...dard library only, no external dependencies
start() and stop() are safe to call multiple times even if the timer has already started/stopped
function to be called can have positional and named arguments
You can change interval anytime, it will be effective after next run. Same for args, kwargs and e...
Measure and Benchmark Time for Ruby Methods
...the time measure code:
def measure(&block)
start = Time.now
block.call
Time.now - start
end
# t1 and t2 is the executing time for the code blocks.
t1 = measure { sleep(1) }
t2 = measure do
sleep(2)
end
share
...