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How to get the last day of the month?
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1134
I didn't notice this earlier when I was looking at the documentation for the calendar module,...
Rails Admin vs. ActiveAdmin [closed]
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edited Jul 1 '11 at 10:06
Dogbert
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Linux Shell脚本参数的获取方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Linux Shell脚本参数的获取方法$0 (脚本名)，$1-$9 参数$# 参数个数（脚本名除外）$? 取上个命令退出码（exit xx, 函数return xx）一般0成功,1失败#! bin shecho ...$0 (脚本名)，$1-$9 参数$# 参数个数（脚本名除外）
$? 取上个命令退出码（exit ...
【解决】标准库std::min/std::max 与 Windows.h中的宏 min/max 冲突问题 - ...
...用std::min std::max会出现错误。int main(){ int x = std::max(0, 1); int y = std::min(-1, 0);}error C2589: & 在包含了 Windows.h 的 C++ 源代码中使用 std::min/std::max 会出现错误。
int main()
{
int x = std::max(0, 1);
int y = std::min(-1, 0);
}
报错如...
How to get a variable value if variable name is stored as string?
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You can use ${!a}:
var1="this is the real value"
a="var1"
echo "${!a}" # outputs 'this is the real value'
This is an example of indirect parameter expansion:
The basic form of parameter expansion is ${parameter}. The value of
parameter is...
Python - Check If Word Is In A String
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11 Answers
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Active
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Foreign key constraints: When to use ON UPDATE and ON DELETE
... And once you'll get used to database consistency you'll love PostgreSQL.
12/2017-Updating this Edit about MySQL:
as stated by @IstiaqueAhmed in the comments, the situation has changed on this subject. So follow the link and check the real up-to-date situation (which may change again in the future...
How do you check if a selector matches something in jQuery? [duplicate]
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11 Answers
11
Active
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Add regression line equation and R^2 on graph
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+100
Here is one solution
# GET EQUATION AND R-SQUARED AS STRING
# SOURCE: https://groups.google.com/forum/#!topic/ggplot2/1TgH-kG5XMA
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