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Correct way to check if a type is Nullable [duplicate]
...() == typeof(Nullable<>)) {…}
explained at the below MSDN link:
http://msdn.microsoft.com/en-us/library/ms366789.aspx
Moreover, there is a similar discussion at this SO QA:
How to check if an object is nullable?
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python tuple to dict
...eUploader: {
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When to use the brace-enclosed initializer?
...eUploader: {
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Using AES encryption in C#
...eck out the following help article (it also has a simple code sample):
http://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndaelmanaged.aspx
And just in case you need the sample in a hurry, here it is in all its plagiarized glory:
using System;
using System.IO;
using Syste...
Checking for empty arrays: count vs empty
...it's only personal preference. Some people might say empty is faster (e.g. http://jamessocol.com/projects/count_vs_empty.php) while others might say count is better since it was originally made for arrays. empty is more general and can be applied to other types.
php.net gives the following warning ...
JSON formatter in C#?
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Yours is nice too except one minor bug: "url":"url('http://google.com')" format to "url":"url('http : //google.com')". spaces are added before and after the second ":" which is wrong.
– Peter Long
Jun 5 '11 at 2:13
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Using multiple delimiters in awk
... the text between []:
Use awk -F'[][]' but awk -F'[[]]' will not work.
http://stanlo45.blogspot.com/2020/06/awk-multiple-field-separators.html
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Java 反射最佳实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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我们之前写反射都是要这么写：
public static <T> T create(HttpRequest httpRequest) {
Object httpRequestEntity = null;
try {
Class<T> httpRequestEntityCls = (Class<T>) Class.forName(HttpProcessor.PACKAGE_NAME + "." + HttpProcessor.CLASS_NAME);
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Forward an invocation of a variadic function in C
...a va_list instead of a variable number of arguments, you can't do it. See http://c-faq.com/varargs/handoff.html.
Example:
void myfun(const char *fmt, va_list argp) {
vfprintf(stderr, fmt, argp);
}
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How to do a PUT request with curl?
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Using the -X flag with whatever HTTP verb you want:
curl -X PUT -d arg=val -d arg2=val2 localhost:8080
This example also uses the -d flag to provide arguments with your PUT request.
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