大约有 23,000 项符合查询结果（耗时：0.0275秒） [XML]
How to find where gem files are installed
...MS VERSION: 2.1.5
- RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0]
- INSTALLATION DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- RUBY EXECUTABLE: /Users/ttm/.rbenv/versions/2.0.0-p247/bin/ruby
- EXECUTABLE DIRECTORY: /Users/ttm/.rbenv/versions/2...
convert double to int
...ze of an int is always 32 bits, regardless of whether you're using a 32 or 64 bit machine.
– Joren
Nov 15 '10 at 10:15
3
...
Where does PostgreSQL store the database?
Where are the files for a PostgreSQL database stored?
13 Answers
13
...
Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED
...
piggybackpiggyback
7,9641010 gold badges4242 silver badges7474 bronze badges
...
What's the best way to get the last element of an array without deleting it?
... on line 1
N4 = Notice: Undefined index: in Command line code on line 1
Based on this output I draw the following conclusions:
newer versions of PHP perform better with the exception of these options that became significantly slower:
option .6. $x = end((array_values($array)));
option .8. $ke...
Formula px to dp, dp to px android
...
Note: The widely used solution above is based on displayMetrics.density. However, the docs explain that this value is a rounded value, used with the screen 'buckets'. Eg. on my Nexus 10 it returns 2, where the real value would be 298dpi (real) / 160dpi (default) =...
How to get ASCII value of string in C#
...wered Dec 30 '08 at 16:28
LeppyR64LeppyR64
4,66211 gold badge2626 silver badges3232 bronze badges
...
Check if element exists in jQuery [duplicate]
...') , however when using jQuery, you do need to put hash to target elements based on id just like CSS.
share
|
improve this answer
|
follow
|
...
STL or Qt containers?
...tandardized, doesn't change with every Qt version (Qt 2 had QList (pointer-based) and QValueList (value-based); Qt 3 had QPtrList and QValueList; Qt 4 now has QList, and it's nothing at all like QPtrList or QValueList).
Even if you end up using the Qt containers, use the STL-compatible API subset (i...
How to reverse-i-search back and forth? [duplicate]
... '16 at 10:42
BringBackCommodore64BringBackCommodore64
2,65422 gold badges2020 silver badges2323 bronze badges
...