大约有 40,000 项符合查询结果（耗时：0.0477秒） [XML]
Vim delete blank lines
... This will delete all the empty lines(do not contain any white space characters..), but that may not be the unique requirement. Someone may still keep one of the empty line. :%!cat -s may be the choice..
– coanor
Nov 21 '12 at 5:04
...
How do you print out a stack trace to the console/log in Cocoa?
...#import <UIKit/UIKit.h>
#import "AppDelegate.h"
int main(int argc, char *argv[])
{
@autoreleasepool {
int retval;
@try{
retval = UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
@catch (NSException *exception)
...
How can I pass a member function where a free function is expected?
...n<void(int, int)> fun)
{
fun(1, 1);
}
int main (int argc, const char * argv[])
{
...
aClass a;
auto fp = std::bind(&aClass::test, a, _1, _2);
function1(fp);
return 0;
}
share
|
...
How to check in Javascript if one element is contained within another
...ich is why a double !! is often used to 'convert anything to boolean').
Extra:
The function's body/payload is so small that, depending on case (like when it is not used often and appears just once in the code), one could even omit the function (wrapping) and just use the while-loop:
var a=docum...
Generate a random letter in Python
...
Simple:
>>> import string
>>> string.ascii_letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> import random
>>> random.choice(string.ascii_letters)
'j'
string.ascii_letters returns a string containin...
How do you get a list of the names of all files present in a directory in Node.js?
...s was the best solution for me as i wanted to specify filetype easier than string comparisons. Thanks.
– Pogrindis
Oct 26 '14 at 20:09
...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
... rule. In this example:
The first set of brackets - ([0-9]+) - matches a string with a minimum of 1 character in length and with only numeric values (i.e. 0-9). This can be referenced with $1 in the right hand side of the rule
The second set of parentheses matches a string with a minimum of 1 char...
Are PHP include paths relative to the file or the calling code?
...
So if you start the string with ./, does it check the calling script's directory first or the current working directory first?
– Pacerier
Jan 29 '15 at 4:44
...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...ces:
"Reads and writes of the following
data types are atomic: bool, char,
byte, sbyte, short, ushort, uint, int,
float, and reference types."
So, you can write to the volatile reference without risk of getting a corrupted value.
You should of course be careful with how you decide which...
Ruby: How to get the first character of a string
How can I get the first character in a string using Ruby?
13 Answers
13
...