大约有 15,640 项符合查询结果（耗时：0.0337秒） [XML]
How to know if user is logged in with passport.js?
...SON.stringify(data),
success: funcSuccess,
error: funcFail
});
function funcSuccess(res) {
sessionStorage.setItem('status', 'loggedIn');
$("#btnlogout").show();
$("#btnlogin").hide();
...
PHP memory profiling
...o work? I tried to put memprof_enable into my PHP code and I get PHP Fatal error: Uncaught Error: Call to undefined function memprof_enable(). I did gperftools make install from current source code of them.
– Andrey Pokhilko
Sep 28 '16 at 16:28
...
Why are arrays covariant but generics are invariant?
...t[] objects = strings; // valid, String[] is Object[]
objects[0] = 12; // error, would cause java.lang.ArrayStoreException: java.lang.Integer during runtime
If this was allowed with generic collections:
List<String> strings = new ArrayList<String>();
List<Object> objects = stri...
Safari 3rd party cookie iframe trick no longer working?
...
You are not getting a syntax error with your call to postMessage?
– akousmata
Apr 16 '15 at 15:17
...
When I catch an exception, how do I get the type, file, and line number?
...
import sys, os
try:
raise NotImplementedError("No error")
except Exception as e:
exc_type, exc_obj, exc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
...
updating table rows in postgres using subquery
...
This totally does not work in postgresql 9.5, I get ERROR: 42P01: relation "dummy" does not exist
– user9645
Oct 14 '16 at 14:37
80
...
Storing time-series data, relational or non?
... Could you explain how the table is "de-normalised" ? Marcus does have an error in the table, but it is not a normalisation error.
– PerformanceDBA
Feb 3 '11 at 9:25
...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
...num. But that's not an Android-specific tip, and it's a really rare design error anyway.
– Elliott Hughes
Jan 22 '12 at 22:57
...
Difference between numpy.array shape (R, 1) and (R,)
...ame issue also occurs column-wise). We will get matrices are not aligned error since M[:,0] is in shape (R,) but numpy.ones((1, R)) is in shape (1, R) .
...
Difference between private, public, and protected inheritance
...t.
If we compile the following code, we will get nothing but compilation errors saying that put and get methods are inaccessible. Why?
When we omit the visibility specifier, the compiler assumes that we are going to apply the so-called private inheritance. It means that all public superclass comp...