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When do you use Git rebase instead of Git merge?
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@jpeskin That's not what I'm seeing. I just did a quick test to verify. Create a directory with a text file, init a new repo, add the file and commit. Checkout a new feature branch (checkout -b feature.) Change the text file, commit and repeat so that there are two new commits on ...
Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
... When can argv[0] have null?
empty: Can argv[0] contain an empty string?
Tested on Ubuntu 16.10.
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How can I check whether a numpy array is empty or not?
....shape
()
>>> np.prod(())
1.0
Therefore, I use the following to test if a numpy array has elements:
>>> def elements(array):
... return array.ndim and array.size
>>> elements(np.array(None))
0
>>> elements(np.array([]))
0
>>> elements(np.zeros...
How do cache lines work?
...s not an easy task. If at the end of the day all you want is a performance test, you can use a tool like Cachegrind. However, as this is a simulation, its result may differ at some degree.
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
...an get away with the raw for loop. jsperf has a few eye-opening comparison tests that are worth running.
– nickb
Dec 5 '11 at 5:31
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req.query and req.param in ExpressJS
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req.query is the query string sent to the server, example /page?test=1, req.param is the parameters passed to the handler.
app.get('/user/:id', handler);, going to /user/blah, req.param.id would return blah;
shar...
Bash script error [: !=: unary operator expected
...s!
if [ "$1" != -v ]; then
Otherwise, when $1 is completely empty, your test becomes:
[ != -v ]
instead of
[ "" != -v ]
...and != is not a unary operator (that is, one capable of taking only a single argument).
shar...
Transparent ARGB hex value
...t is #RRGGBBAA Hex8 (or #RGBA in Hex4) and NOT #AARRGGBB (or #ARGB) I have tested in Chrome 62,63,64 Refer to CanIUse.com , https://css-tricks.com/8-digit-hex-codes/ , Chrome Feature Status
– SGS Sandhu
Mar 2 '18 at 16:55
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Is HTML5 localStorage asynchronous?
...at once, so if you close then open again your page, you may not have the latest elements you stored. I've tested that in a hybrid app in Android, and it makes the usage of localStorage inapropriate in some cases.
– user276648
Apr 23 '15 at 13:38
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SetUnhandledExceptionFilter and the C/C++ Runtime Library - C/C++ - 清泛网 - 专注IT技能提升
...(JIT) debugger if such a debugger is installed on the system.
In order to test the code, we will simulate a null pointer invalid access like this:
int main()
{
::SetUnhandledExceptionFilter(OurCrashHandler);
std::cout << "Normal null pointer crash" << std::endl;
char *p = 0;
...