大约有 10,000 项符合查询结果（耗时：0.0209秒） [XML]
Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
...ves the problem of reusing and mutating the original default value (as the block given is called each time, returning a new array), but not the assignment problem:
h = Hash.new { [] }
h[0] << 'a' #=> ["a"]
h[1] <<= 'b' #=> ["b"]
h #=> {1=>["b"]}
What does ...
Can you grab or delete between parentheses in vi/vim?
...ecify that you want to go 2 levels of parens up. Finally the a) selects "a block". After that you can use d or x to delete, etc.
If you don't want to include the outer parens, you can use "inner block" instead:
v2i)
See :help object-select for the complete list of related commands.
...
How do you make Git ignore files without using .gitignore?
...ocal changes to tracked files:
git update-index --assume-unchanged my-file.php
Unignore local changes to tracked files:
git update-index --no-assume-unchanged my-file.php
source: git help update-index
--[no-]assume-unchanged
...
This option can be also used as a coarse file-...
Unusual shape of a textarea?
...itable and then shape it with some div on it. Here is an example, with two blocks which float at the upper left and the upper right of the main div:
As you can see, you have to play a little with the borders if you want the same result as you requested in your post. The main div has the blue bord...
How do you version your database schema? [closed]
...
Brazil looks pretty good, too bad I'm using mainly PHP. Ever considered porting the system?
– Eran Galperin
Jan 1 '09 at 20:26
add a comment
...
Inline code in org-mode
... doesn't actually endow it with the executable properties a real BEGIN_SRC block has. @Tom's answer below is better if you want that.
– Ken Williams
Sep 30 '15 at 20:15
...
Real life trading API [closed]
... @Jeff Barger: There's some kludge: <elitetrader.com/vb/showthread.php?threadid=17343>
– dirkgently
Apr 13 '09 at 18:00
...
Explanation of …
...gt;</script> , which contained code that looks like something out of PHP but with JavaScript tags.
7 Answers
...
Bogus foreign key constraint fail
...
On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_...
CSS center text (horizontally and vertically) inside a div block
I have a div set to display:block ( 90px height and width ), and I have some text inside.
27 Answers
...