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Are Javascript arrays sparse?
... answered May 29 '19 at 1:52
Charles MerriamCharles Merriam
16.4k55 gold badges6262 silver badges7272 bronze badges
...
What is your most productive shortcut with Vim?
...e used as subjects for other "statements."
So, one way to cut an arbitrary selection of text would be to drop a mark (I usually use 'a' as my "first" mark, 'z' as my next mark, 'b' as another, and 'e' as yet another (I don't recall ever having interactively used more than four marks in 15 years of u...
“Unknown class in Interface Builder file” error at runtime
...n't need to recreate the files.
Using XCode 4, in the Project Navigator, select the .m file that contains the class that it is complaining about
Go to View->Utilities->Show File Inspector(this will show the File Inspector to the right, with that .m-file info)
Open the Target Membership secti...
Still Reachable Leak detected by Valgrind
...d are almost always leaks.
Here is an example
int foo(void)
{
static char *working_buf = NULL;
char *temp_buf;
if (!working_buf) {
working_buf = (char *) malloc(16 * 1024);
}
temp_buf = (char *) malloc(5 * 1024);
....
....
....
}
Valgrind will report wo...
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 to convert comma-delimited string to list in Python?
...
You can use this function to convert comma-delimited single character strings to list-
def stringtolist(x):
mylist=[]
for i in range(0,len(x),2):
mylist.append(x[i])
return mylist
share
...
Convert a string representation of a hex dump to a byte array using Java?
...;
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
Reasons why it is an improvement:
Safe with leading zeros (unlike BigInteger) and wit...
How to convert UTF-8 byte[] to string?
...
LINQ it: var decBytes2 = str.Split('-').Select(ch => Convert.ToByte(ch, 16)).ToArray();
– drtf
Jul 13 '14 at 14:43
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How does `is_base_of` work?
...;B, D>&)
D* (Host<B, D>&)
This would mean that we can't select by constness anymore. In an ordinary overload resolution scenario, the call would now be ambiguous because normally the return type won't participate in overload resolution. For conversion functions, however, there is ...
Is there a way to ignore header lines in a UNIX sort?
...ugh sort.
Note that this has the very specific advantage of being able to selectively sort parts
of a piped input. all the other methods suggested will only sort plain files which can be read multiple times. This works on anything.
...