大约有 36,020 项符合查询结果（耗时：0.0454秒） [XML]
opengl: glFlush() vs. glFinish()
...n the screen, when you call glFlush after each object. However, when using double buffering, glFlush has practically no effect at all, since the changes won't be visible until you swap the buffers.
glFinish does not return until all effects from previously issued commands [...] are fully realized....
JavaScript: client-side vs. server-side validation
Which is better to do client side or server side validation?
13 Answers
13
...
Example for boost shared_mutex (multiple reads/one write)?
...
It looks like you would do something like this:
boost::shared_mutex _access;
void reader()
{
// get shared access
boost::shared_lock<boost::shared_mutex> lock(_access);
// now we have shared access
}
void writer()
{
// get upgradabl...
How do I assert an Iterable contains elements with a certain property?
...ght direction. I was able to get it in one line and I successfully hunted down the imports for Hamcrest 1.3.
the imports:
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.beans...
Python: changing value in a tuple
...
First you need to ask, why you want to do this?
But it's possible via:
t = ('275', '54000', '0.0', '5000.0', '0.0')
lst = list(t)
lst[0] = '300'
t = tuple(lst)
But if you're going to need to change things, you probably are better off keeping it as a list
...
How do I get the value of a textbox using jQuery?
...
Why does '.value()' not work in jQuery? I wouldn't have searched Google if it did, because this is what I tried intuitively. Why choose to shorten it two chars...
– Mike de Klerk
Jul 26 '15 ...
Are foreign keys really necessary in a database design?
...er to manipulate data in the correct way. Suppose a programmer is actually doing this in the right manner already, then do we really need the concept of foreign keys?
...
Adding a column to an existing table in a Rails migration
...w migration (rails generate migration add_email_to_users email:string will do the trick).
It will create a migration file containing line:
add_column :users, email, string
Then do a rake db:migrate and it'll run the new migration, creating the new column.
If you have not yet run the original migrat...
How to do multiple arguments to map function where one remains the same in python?
...
The docs explicitly suggest this is the main use for itertools.repeat:
Make an iterator that returns object over and over again. Runs indefinitely unless the times argument is specified. Used as argument to map() for invarian...
Angular HttpPromise: difference between `success`/`error` methods and `then`'s arguments
According to AngularJS doc , calls to $http return the following:
6 Answers
6
...