大约有 47,000 项符合查询结果（耗时：0.0402秒） [XML]
Get property value from string using reflection
...null value of an existing property or no property at all? I'd much rather know immediately that I was sending in a bad property name. This is not production code, but a better improvement would be to throw a more specific exception (e.g. check for null on GetProperty and throw PropertyNotFoundExcept...
PostgreSQL: Drop PostgreSQL database through command line [closed]
...elect * from pg_stat_activity;" say? Are the other users besides yourself now connected? If so, you might have to edit your pg_hba.conf file to reject connections from other users, or shut down whatever app is accessing the pg database to be able to drop it. I have this problem on occasion in pro...
How do I delete unpushed git commits?
...or me, git reset --hard origin says fatal: ambiguous argument 'origin': unknown revision or path not in the working tree.. Why?
– trss
Jul 10 '13 at 12:01
...
JavaScript function order: why does it matter?
...
var foo = 42;
//the interpreter turns it into this:
var foo;
foo = 42;
Now, how function declarations are handled:
var foo = 42;
function bar() {}
//turns into
var foo; //Insanity! It's now at the top
function bar() {}
foo = 42;
The var statements "throws" the creation of foo to the very top...
What size should apple-touch-icon.png be for iPad and iPhone?
...the same display resolution, dpi, etc as iPhone 6s and iPhone 7plus, until now no changes found respecting the update 2015
Update Mid 2016 Android:
Add Android Devices to the list as the apple-touch links are marked as deprecated by Google and will be not supported anytime for their devices
<!-...
JSONP with ASP.NET Web API
...So far, it's great. I have created the service and gotten it to work, and now I am trying to consume it using JQuery. I can get back the JSON string using Fiddler, and it seems to be ok, but because the service exists on a separate site, trying to call it with JQuery errors with the "Not Allowed"....
Doing a cleanup action just before Node.js exits
...r-LucGendreau where does this specific code go?
– hownowbrowncow
Mar 28 '16 at 20:04
11
I've foun...
How to use shell commands in Makefile
...e not found a quick reference link to a POSIX document for this, nor do I know off-hand which make variants support ::= assignment, although GNU make does today, with the same meaning as :=, i.e., do the assignment right now with expansion.
Note that VAR := $(shell command args...) can also be spel...
Rule-of-Three becomes Rule-of-Five with C++11?
...since C++11 was passed? I believe struct C { virtual ~C() = default; }; is now allowed and the most concise option. The prohibition ("- it shall not be virtual") from n3242 is not present anymore in n3290 and GCC allows it while previously it didn't.
– Luc Danton
...
How do I use method overloading in Python?
...
@LegitStack I updated the code on GitHub, now it works with functions too.
– Ehsan Keshavarzian
Aug 6 '19 at 2:40
...