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Django set default form values
... this way:
form = SomeModelForm(request.POST, initial={"option": "10"})
https://docs.djangoproject.com/en/1.10/topics/forms/modelforms/#providing-initial-values
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How can Bash execute a command in a different directory context?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to measure elapsed time in Python?
...e and then get the passed time, to measure the time it took to execute few function. I think I'm using the timeit module wrong, but the docs are just confusing for me.
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check android application is in foreground or not? [duplicate]
...05's answer is error prone and discouraged by Android OS Developers (check https://groups.google.com/forum/#!msg/android-developers/zH-2bovZSLg/L2YM8Z1N-HwJ)
There is a much more simpler approach:
On a BaseActivity that all Activities extend:
protected static boolean isVisible = false;
@Override...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...图：
multi_index_container性能测试
来源于libGod官网http://www.libgod.com/
boost中有个multi_index_container，感觉比较好用，但不知道性能怎么样。今天特意测试了下他的插入，查找，删除的性能。
测试代码：
#include <cstdio>
#include <ma...
Get JSON object from URL
...
$ch = curl_init();
// IMPORTANT: the below line is a security risk, read https://paragonie.com/blog/2017/10/certainty-automated-cacert-pem-management-for-php-software
// in most cases, you should set it to true
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFE...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，缓存服务器可以处理大部分客户的静态请求，而原始的WWW服务器只需处理约20%左右的非缓存请求和动态请求，于是大大加快了客户请求的响应时间，并降低了原始WWW服务器的负载。根据美国IDC公司的调查，作为CDN的一项重要指...
How to extract numbers from a string in Python?
...th Scientific notation "[-+]?\d+[\.]?\d*[Ee]?\d*". Or some variation. Have fun!
– aidan.plenert.macdonald
Nov 6 '15 at 15:12
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Kotlin: how to pass a function as parameter to another?
Given function foo :
10 Answers
10
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How to call a parent class function from derived class function?
How do I call the parent function from a derived class using C++? For example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the ...