大约有 7,300 项符合查询结果（耗时：0.0220秒） [XML]
Tools to get a pictorial function call graph of code [closed]
...k space which has many source files of C code. Although I can see the functions called from a function in MS VS2005 using the Object browser, and in MSVC 6.0 also, this only shows functions called from a particular function in a non-graphical kind of display. Additionally, it does not show the funct...
How to check a not-defined variable in JavaScript
...lared and is not undefined:
if (yourvar !== undefined) // Any scope
Previously, it was necessary to use the typeof operator to check for undefined safely, because it was possible to reassign undefined just like a variable. The old way looked like this:
if (typeof yourvar !== 'undefined') // Any ...
HTML5 Video Dimensions
I'm trying to get the dimensions of a video of which I'm overlaying onto a page with JavaScript, however it is returning the dimensions of the poster image instead of the actual video as it seems it's being calculated before the video is loaded.
...
How do I clone a Django model instance object and save it to the database?
...ne's and m2m's involved (i.e., there may be more complex "deep copy" scenarios)
– B Robster
Sep 30 '14 at 21:47
...
PDO mysql: How to know if insert was successful
...t PDOStatement->errorCode() has nothing?
– datasn.io
Jan 20 '15 at 7:08
1
But INSERT IGNORE wo...
How to subtract 2 hours from user's local time?
...at is, d.setHours(d.getHours() - 24) rewinds d to the same time on the previous day.
– Adam Loving
Mar 5 '15 at 16:44
...
How to output in CLI during execution of PHP Unit tests?
...r way to do this that works much better than the --verbose command line option:
class TestSomething extends PHPUnit_Framework_TestCase {
function testSomething() {
$myDebugVar = array(1, 2, 3);
fwrite(STDERR, print_r($myDebugVar, TRUE));
}
}
This lets you dump anything to ...
Xcode stops working after set “xcode-select -switch”
...ould be pointing it towards the Developer directory, not the Xcode application bundle. Run this:
sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer
With recent versions of Xcode, you can go to Xcode ➙ Preferences… ➙ Locations and pick one of the options for Command Line ...
How to print without newline or space?
...
In Python 3, you can use the sep= and end= parameters of the print function:
To not add a newline to the end of the string:
print('.', end='')
To not add a space between all the function arguments you want to print:
print('a', 'b', 'c', sep='')
You can pass any string to either parameter, ...
Send and receive messages through NSNotificationCenter in Objective-C?
I am attempting to send and receive messages through NSNotificationCenter in Objective-C. However, I haven't been able to find any examples on how to do this. How do you send and receive messages through NSNotificationCenter ?
...