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How can I convert NSDictionary to NSData and vice versa?
...
NSDictionary from NSData
http://www.cocoanetics.com/2009/09/nsdictionary-from-nsdata/
NSDictionary to NSData
You can use NSPropertyListSerialization class for that. Have a look at its method:
+ (NSData *)dataFromPropertyList:(id)plist format:(NSPropertyL...
STL中map容器使用自定义key类型报错详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的使用了less进行比较。
关于这个_Pr详解可见：http://www.cnblogs.com/zjfdlut/archive/2011/08/12/2135698.html
解决方法
好了，知道了出错原因，我们就自己重载<操作符了：
bool operator<(const a& a1, const a& a2)
{
if ( a1.m_a>=a2.m_a )
...
Do you have to include ?
...son for adding the link.
Info on setting up a cookieless domain:
http://www.ravelrumba.com/blog/static-cookieless-domain/
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follow
...
Post an empty body to REST API via HttpClient
...ingContent.Headers.ContentType = MediaTypeHeaderValue.Parse("application/x-www-form-urlencoded");
var response = client.PostAsync(url, stringContent).Result;
var result = response.Content.ReadAsAsync<model>().Result;
}
...
How do you delete an ActiveRecord object?
...tion
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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fo...
Download file from web in Python 3
...and save it locally using the below code:
import requests
url = 'https://www.python.org/static/img/python-logo.png'
fileName = 'D:\Python\dwnldPythonLogo.png'
req = requests.get(url)
file = open(fileName, 'wb')
for chunk in req.iter_content(100000):
file.write(chunk)
file.close()
...
C/C++ NaN constant (literal)?
...
This can be done using the numeric_limits in C++:
http://www.cplusplus.com/reference/limits/numeric_limits/
These are the methods you probably want to look at:
infinity() T Representation of positive infinity, if available.
quiet_NaN() T Representation of quiet (non-signalin...
How do I check if a string contains a specific word?
...1014/regex-word-boundaries-with-unicode-207794f6e7ed
// Thanks https://www.phpliveregex.com/
if (preg_match('/(?<=[\s,.:;"\']|^)' . $word . '(?=[\s,.:;"\']|$)/', $str)) return true;
}
And if you want to search for array of words, you can use this:
function arrayContainsWord($str, array $...
Cannot send a content-body with this verb-type
...t p_request, string p_Method)
{
p_request.ContentType = "application/x-www-form-urlencoded";
p_request.Method = p_Method;
p_request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows CE)";
p_request.Host = strServer.Split('/')[2].ToString();
p_request.Accept = "*/*";
if ...
Aligning a float:left div to center?
...
Perhaps this what you're looking for - https://www.w3schools.com/css/css3_flexbox.asp
CSS:
#container {
display: flex;
flex-wrap: wrap;
justify-content: center;
}
.block {
width: 150px;
height: 15...