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How to get the number of days of difference between two dates on mysql?
... the calculation
In your case, you'd use :
mysql> select datediff('2010-04-15', '2010-04-12');
+--------------------------------------+
| datediff('2010-04-15', '2010-04-12') |
+--------------------------------------+
| 3 |
+--------------------------------...
How to store a dataframe using Pandas
...you can load it back using:
df = pd.read_pickle(file_name)
Note: before 0.11.1 save and load were the only way to do this (they are now deprecated in favor of to_pickle and read_pickle respectively).
Another popular choice is to use HDF5 (pytables) which offers very fast access times for large...
How to insert element as a first child?
..."<div class='child-div'>some text</div>");
Demo
var i = 0;
$(document).ready(function () {
$('.add').on('click', function (event) {
var html = "<div class='child-div'>some text " + i++ + "</div>";
$("#parent-div").prepend(html);
});
});
&...
Why use ICollection and not IEnumerable or List on many-many/one-many relationships?
...
answered Apr 11 '12 at 20:20
Travis JTravis J
74.9k3737 gold badges177177 silver badges244244 bronze badges
...
Importing from builtin library when module with same name exists
...eveloping version and not the published (and installed) one. In windows 10 i had to write the path to my module like this: file_path=r"C:\Users\My User\My Path\Module File.py". Then i called module_name just like the released module so that i had full working script that, stripped off this snippet...
How to amend a commit without changing commit message (reusing the previous one)?
...
1053
Since git 1.7.9 version you can also use git commit --amend --no-edit to get your result.
Not...
Usage of protocols as array types and function parameters in swift
...ustDarkDust
84k1616 gold badges175175 silver badges209209 bronze badges
1
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Fill remaining vertical space with CSS using display:flex
...: DEMO
section {
display: flex;
flex-flow: column;
height: 300px;
}
header {
background: tomato;
/* no flex rules, it will grow */
}
div {
flex: 1; /* 1 and it will fill whole space left if no flex value are set to other children*/
background: gold;
overflow: a...
Single script to run in both Windows batch and Linux Bash?
...that any use of $? must be before your next colon : because : resets $? to 0.
:; echo "Hi, I’m ${SHELL}."; exit $?
@ECHO OFF
ECHO I'm %COMSPEC%
A very contrived example of guarding $?:
:; false; ret=$?
:; [ ${ret} = 0 ] || { echo "Program failed with code ${ret}." >&2; exit 1; }
:; exit...
使用 C++ 处理 JSON 数据交换格式 - C/C++ - 清泛网 - 专注C/C++及内核技术
...p://sourceforge.NET/projects/jsoncpp。本文使用的 jsoncpp 版本为：0.5.0。
三、jsoncpp 在 Windows 下的编译
要使用第三方源码库，第一步少不了的就是编译，将源码文件编译成我们方便使用的动态链接库、静态链接库或者静态导入库[1]。
...