大约有 40,000 项符合查询结果（耗时：0.0911秒） [XML]
Convert NaN to 0 in javascript
...parseFloat(...) will return NaN if given a nonsensical argument (null, '', etc). Fix the issue at the lowest level possible rather than at a higher level. Then the result of the overall calculation has a good chance of making sense, and you're not substituting some magic number (0 or 1 or whatever) ...
Exception.Message vs Exception.ToString()
...every exception type and occurance out there (think of ArgumentExceptions, etc.).
Also, in addition to the StackTrace, ToString() will include information you will not get otherwise. For example the output of fusion, if enabled to include log messages in exception "messages".
Some exception type...
JavaScript before leaving the page
...
this can be overwritten by any other plugin etc, mostly developer made mistake with selector, if you are doubted about overwritten, put your jquery code before close of </body> tag.
– Wasim A.
Aug 9 '14 at 6:37
...
Entity Framework: There is already an open DataReader associated with this Command
I am using Entity Framework and occasionally i will get this error.
17 Answers
17
...
LLVM vs clang on OS X
...n use for things like code analyzing, autocompletion, syntax highlighting, etc… This is very handy for IDEs.
– user142019
Nov 9 '11 at 9:43
...
How to replace ${} placeholders in a text file?
... instead $HOME as my own /home/zw963, but, it seem like not support $(cat /etc/hostname) substitution, so it not complete match my own demand.
– zw963
Jan 9 '16 at 16:06
...
get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...th and date:
(gdb) po today
2010-06-22 00:00:00 +0200
To get yesterday, etc. you can calculate it using NSDateComponents:
NSDateComponents *components = [[NSDateComponents alloc] init];
[components setDay:-1];
NSDate *yesterday = [cal dateByAddingComponents:components toDate:today options:0];
...
How to add items to a spinner in Android?
...
While this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.
– Bill the Lizard
Jan 26 '12 at 21:00
...
Tool for adding license headers to source files? [closed]
...fy the .endswith parameter for the filemask of your language (.c, .java, ..etc)
ability to overwrite previous copyright text (provide old copyright parameter to do this)
optionally omits directories given in the excludedir array
-
# updates the copyright information for all .cs files
# usage: cal...
Real world use of JMS/message queues? [closed]
...ation (e.q. by app server name, api call, log level, userid, message type, etc...). I also colorized the output.
Debug logging to file. Same as above, only specific pieces were pulled out using filters, and logged to file for general logging.
Alerting. Again, a similar setup to the above logging, wa...