大约有 7,000 项符合查询结果(耗时:0.0128秒) [XML]

https://stackoverflow.com/ques... 

passport.js passport.initialize() middleware not in use

... in my route authenticate middleware. app.post('/api/public/auth/google-token', passport.authenticate('google-token', { session: false }), function (req: any, res) { res.send("hello"); } ); ...
https://stackoverflow.com/ques... 

How to create a memory leak in Java?

...The thread loads a class via an (optionally custom) ClassLoader. The class allocates a large chunk of memory (e.g. new byte[1000000]), stores a strong reference to it in a static field, and then stores a reference to itself in a ThreadLocal. Allocating the extra memory is optional (leaking the clas...
https://stackoverflow.com/ques... 

How to read a line from the console in C?

...ters it read. So you use fgetc: char * getline(void) { char * line = malloc(100), * linep = line; size_t lenmax = 100, len = lenmax; int c; if(line == NULL) return NULL; for(;;) { c = fgetc(stdin); if(c == EOF) break; if(--len == 0)...
https://stackoverflow.com/ques... 

How can I programmatically check whether a keyboard is present in iOS app?

...tance; } + (void)load { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; sharedInstance = [[self alloc] init]; [pool release]; } - (BOOL)isVisible { return _isVisible; } - (void)didShow { _isVisible = YES; } - (void)didHide { _isVisible = NO; } - (id)init { ...
https://stackoverflow.com/ques... 

What's the difference between VARCHAR and CHAR?

...n hold is 255 characters. It's 50% faster than VARCHAR. Uses static memory allocation. VARCHAR Used to store variable length alphanumeric data. The maximum this data type can hold is up to Pre-MySQL 5.0.3: 255 characters. Post-MySQL 5.0.3: 65,535 characters shared for the row. It's slower tha...
https://stackoverflow.com/ques... 

boost::flat_map and its performance compared to map and unordered_map

... few variations of the scenario. A container performance is affected by: Allocator size of contained type cost of implementation of copy operation, assignment operation, move operation, construction operation, of the contained type. number of elements in the container (size of the problem) type ha...
https://stackoverflow.com/ques... 

YAML current date in rmarkdown

...l::yaml.load(front_matter) : Scanner error: while scanning for the next token at line 3, column 31 found character that cannot start any token at line 3, column 31 Calls: <Anonymous> ... output_format_from_yaml_front_matter -> parse_yaml_front_matter -> <Anonymous> -&gt...
https://stackoverflow.com/ques... 

How to find a Java Memory Leak

...t "TRACE nnnn" to see the top few frames of the stack where the object was allocated. Often, once I see where the object is allocated, I find a bug and I'm done. Also, note that you can control how many frames are recorded in the stack with the options to -Xrunhprof. If you check out the allocation...
https://stackoverflow.com/ques... 

Check list of words in another string [duplicate]

...f Of course you can also do whole word matches with regex using the "\b" token. The performance of these and Kenny's solution are going to depend on several factors, such as how long the word list and phrase string are, and how often they change. If performance is not an issue then go for the si...
https://stackoverflow.com/ques... 

How to create local notifications?

...n *)notification { UIAlertView *notificationAlert = [[UIAlertView alloc] initWithTitle:@"Notification" message:@"This local notification" delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil]; [notificationAlert show]; // NSLog(@"didReceiveLocalNotific...