大约有 47,000 项符合查询结果（耗时：0.0640秒） [XML]
Easy way to prevent Heroku idling?
...eature that will ping your site twice per minute, thus preventing the dyno from idling.
More or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great).
Note: to all those saying it doesn't work: the important part in ...
Most efficient way to make the first character of a String lower case?
...y if and only if the string is in ASCII. This was the fastest. c[0] |= ' ' from Mike's comment gave the same performance.
char c[] = string.toCharArray();
c[0] += 32;
string = new String(c);
test4 used StringBuilder.
StringBuilder sb = new StringBuilder(string);
sb.setCharAt(0, Character.toLowerC...
Html List tag not working in android textview. what can i do?
...
As you can see in the Html class source code, Html.fromHtml(String) does not support all HTML tags. In this very case, <ul> and <li> are not supported.
From the source code I have built a list of allowed HTML tags:
br
p
div
em
b
strong
cite
dfn
i
big
small
font...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... note
We know that the standard says undefined behavior is unpredictable from the note that come with the definition which says:
[ Note: Undefined behavior may be expected when this International
Standard omits any explicit definition of behavior or when a program
uses an erroneous constru...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
... -t rsa with out a password i.e. enter at the prompt.
How can I do that from a shell script?
7 Answers
...
django MultiValueDictKeyError error, how do I deal with it
... is_private = request.POST['is_private']
else:
is_private = False
3
from django.utils.datastructures import MultiValueDictKeyError
try:
is_private = request.POST['is_private']
except MultiValueDictKeyError:
is_private = False
...
Why does an overridden function in the derived class hide other overloads of the base class?
...y know that in C++ overload resolution works by choosing the best function from the set of candidates. This is done by matching the types of arguments to the types of parameters. The matching rules could be complicated at times, and often lead to results that might be perceived as illogical by an un...
Check if PHP session has already started
I have a PHP file that is sometimes called from a page that has started a session and sometimes from a page that doesn't have session started. Therefore when I have session_start() on this script I sometimes get the error message for "session already started". For that I've put these lines:
...
What is thread safe or non-thread safe in PHP?
...ways choose non-thread safe version because I always use nginx, or run PHP from the command line.
The non-thread safe version should be used if you install PHP as a CGI binary, command line interface or other environment where only a single thread is used.
A thread-safe version should be used if y...
How to run code when a class is subclassed? [duplicate]
...e. Although there doesn't seem to be any harm in making SuperClass inherit from object... it's definitely necessary for Watcher to inherit from type, not object.
– ArtOfWarfare
Sep 19 '15 at 14:36
...