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How to get the error message from the error code returned by GetLastError()?
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//Returns the last Win32 error, in string format. Returns an empty string if there is no error.
std::string GetLastErrorAsString()
{
//Get the error message, if any.
DWORD errorMessageID = ::GetLastError();
if(errorMessageID == 0)
return st...
How to generate string of a certain length to insert into a file to meet a file size criteria?
...nd how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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String.IsNullOrWhiteSpace in LINQ Expression
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You need to replace
!string.IsNullOrWhiteSpace(b.Diameter)
with
!(b.Diameter == null || b.Diameter.Trim() == string.Empty)
For Linq to Entities this gets translated into:
DECLARE @p0 VarChar(1000) = ''
...
WHERE NOT (([t0].[Diameter] IS NUL...
How to un-escape a backslash-escaped string?
Suppose I have a string which is a backslash-escaped version of another string. Is there an easy way, in Python, to unescape the string? I could, for example, do:
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Fastest way to remove first char in a String
Say we have the following string
4 Answers
4
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jQuery hasAttr checking to see if there is an attribute on an element [duplicate]
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if the name attr is present but empty string, the attribute would exist but the test would fail.
– lambacck
Jun 12 '10 at 4:01
7
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How to convert a Title to a URL slug in jQuery?
...ield').val())
original by: http://dense13.com/blog/2009/05/03/converting-string-to-slug-javascript/
EDIT:
extended for more language specific chars:
var from = "ÁÄÂÀÃÅČÇĆĎÉĚËÈÊẼĔȆĞÍÌÎÏİŇÑÓÖÒÔÕØŘŔŠŞŤÚŮÜÙÛÝŸŽáäâàãåčçćďéěëèêẽĕȇğí...
Authorize Attribute with Multiple Roles
...Attribute : AuthorizeAttribute
{
public AuthorizeRolesAttribute(params string[] roles) : base()
{
Roles = string.Join(",", roles);
}
}
Assuming your roles will be the same for multiple controllers, create a helper class:
public static class Role
{
public const string Admin...
How do malloc() and free() work?
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@Juergen But when free() read extra byte which contain information how much memory allocated from malloc, it get 4. Then how crash happened or how free() touch administrative data ?
– Undefined Behaviour
Aug 5 '16 at...
Python - write() versus writelines() and concatenated strings
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writelines expects an iterable of strings
write expects a single string.
line1 + "\n" + line2 merges those strings together into a single string before passing it to write.
Note that if you have many lines, you may want to use "\n".join(list_of_lines).
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