大约有 47,000 项符合查询结果（耗时：0.0880秒） [XML]
Check if application is on its first run [duplicate]
I am new to android development and and I want to setup some of application's attributes based on Application first run after installation. Is there any way to find that the application is running for the first time and then to setup its first run attributes?
...
How to iterate over the keys and values in an object in CoffeeScript?
...ld not initialise arr as arr = [], you should use arr = {}. In Javascript (and Coffeescript) arrays have numeric indices. Objects behave like associative arrays/dicts.
– Morgan Harris
Mar 18 '13 at 3:55
...
Use of exit() function
I want to know how and when can I use the exit() function like the program in my book:
13 Answers
...
Laravel Eloquent groupBy() AND also return count of each group
... table that contains, amongst other columns, a column of browser versions. And I simply want to know from the record-set, how many of each type of browser there are. So, I need to end up with something like this: Total Records: 10; Internet Explorer 8: 2; Chrome 25: 4; Firefox 20: 4. (All adding up ...
Is it possible to view bytecode of Class file? [duplicate]
...
Yes. You can use the javap command that's included with the JDK to see the byte code of a class. For example:
javap -c com.mypackage.MyClass
There are several libraries and tools that help you to work with Java bytecode, for example ASM and Jasmin.
...
Two single-column indexes vs one two-column index in MySQL?
I'm faced with the following and I'm not sure what's best practice.
4 Answers
4
...
What does [object Object] mean?
I am trying to alert a returned value from a function and I get this in the alert:
9 Answers
...
What is Shelving in TFS?
...orking on a new feature, minding your own business, when your boss runs in and says "Ahhh! Bug Bug Bug!" and you have to drop your current changes on the feature and go fix the bug. You can shelve your work on the feature, fix the bug, then come back and unshelve to work on your changes later.
Shar...
How do I remove duplicate items from an array in Perl?
..., but if you were to add sorting in this function then it would trump $::a and $::b, wouldn't it?
– vol7ron
Feb 21 '12 at 16:45
5
...
Deleting a file in VBA
...; "")
End Function
I'll leave it to you to figure out the various error handling needed but these are among the error handling things I'd be considering:
Check for an empty string being passed.
Check for a string containing characters illegal in a file name/path
2.) How To Delete a File. Look...