大约有 30,000 项符合查询结果（耗时：0.0393秒） [XML]
Check if a div exists with jquery [duplicate]
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Unless in code above they got something like $('#DivID') = null; Lol)
– ZurabWeb
Nov 6 '13 at 21:14
9
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Split List into Sublists with LINQ
...Take(chunksize);
pos += chunksize;
}
}
Which will avoid massive call chains. Nonetheless, this approach has a general flaw. It materializes two enumerations per chunk, to highlight the issue try running:
foreach (var item in Enumerable.Range(1, int.MaxValue).Chunk(8).Skip(100000).First(...
Why doesn't logcat show anything in my Android?
Why doesn't logcat show anything in my Android (while developing apps with Eclipse)?
27 Answers
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PHP Remove elements from associative array
...etimes an application architecture doesn't want you to mess with the array id, or makes it inconvenient. For instance, I use CakePHP quite a lot, and a database query returns the primary key as a value in each record, very similar to the above.
Assuming the array is not stupidly large, I would use...
Abstract functions in Swift Language
... the need of a return statement. EDIT: Just found out that this method basically is equal to fatalError() but it's the more proper way (Better documentation, introduced in Swift along with precondition(), assert() and assertionFailure(), read here)
– Kametrixom
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Is the primary key automatically indexed in MySQL?
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I guess this is the answer
mysql> create table test(id int primary key, s varchar(20));
Query OK, 0 rows affected (0.06 sec)
mysql> show indexes from test \G
*************************** 1. row ***************************
Table: test
Non_unique: 0
Key_name: ...
Check if a string has white space
... couldn't you put in s.indexOf(/^\s+$/) as well?
– Zoidberg
Nov 13 '09 at 19:08
2
this is not sup...
Batch files - number of command line arguments
...e looking for.
@echo off
setlocal enableextensions enabledelayedexpansion
call :getargc argc %*
echo Count is %argc%
echo Args are %*
endlocal
goto :eof
:getargc
set getargc_v0=%1
set /a "%getargc_v0% = 0"
:getargc_l0
if not x%2x==xx (
shift
set /a "%getargc_v0% = %geta...
C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网 - 专注IT技能提升
...es on MFC and can also be used in a console application.
First of all to call a script it is important to know that VBScript and JScript deal only with VARIANT parameters. This is the reason I created the CSafeArrayHelper class. The CSafeArray helper wrapper class allows you to create parameters t...
C++应用程序添加VBScript和JavaScript支持 - C/C++ - 清泛网 - 专注IT技能提升
...es on MFC and can also be used in a console application.
First of all to call a script it is important to know that VBScript and JScript deal only with VARIANT parameters. This is the reason I created the CSafeArrayHelper class. The CSafeArray helper wrapper class allows you to create parameters t...