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What does 'wb' mean in this code, using Python?
...2.6, the docs said that the b mode only had an effect on Windows. That has now been removed from the documentation and binary mode "should be used for all files that don’t contain text".
– Daniel G
Oct 1 '19 at 18:21
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Create a shortcut on Desktop
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}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("000214F9-0000-0000-C000-000000000046")]
internal interface IShellLink
{
void GetPath([Out, MarshalAs(UnmanagedType.LPWStr)] StringBuilder pszFile, int cchMaxPath, out IntPtr pfd, int fFlags);...
how to permit an array with strong parameters
..._answer_id, :province_id, :city, :category_ids => [])
Works perfectly now!
(IMPORTANT: As @Lenart notes in the comments, the array declarations must be at the end of the attributes list, otherwise you'll get a syntax error.)
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SSH to Elastic Beanstalk instance
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Elastic beanstalk CLI v3 now supports direct SSH with the command eb ssh. E.g.
eb ssh your-environment-name
No need for all the hassle of setting up security groups of finding out the EC2 instance address.
There's also this cool trick:
eb ssh -...
Can I hex edit a file in Visual Studio?
...
+1 for the answer, but now for a rant (not against Kevin's answer, but against these controls)... Those buttons-with-options that MS uses sometimes in file open dialogs (does this control have a commonly used name?) seem like a neat idea, but from ...
Gson: How to exclude specific fields from Serialization without annotations
... Ty for the update. What I;m trying to see if it's possible to know where in the object graph I am when the method it called so I can exclude some fields of country but not countryOfBirth(for example) so same class but different properties. I've edited my question to clarify what I'm tryi...
Difference in make_shared and normal shared_ptr in C++
...))
new Rhs("bar"))
std::shared_ptr<Lhs>
std::shared_ptr<Rhs>
Now, suppose we get an exception thrown at step 2 (e.g., out of memory exception, Rhs constructor threw some exception). We then lose memory allocated at step 1, since nothing will have had a chance to clean it up. The core o...
Is it expensive to use try-catch blocks even if an exception is never thrown?
We know that it is expensive to catch exceptions. But, is it also expensive to use a try-catch block in Java even if an exception is never thrown?
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What's the best way to get the current URL in Spring MVC?
....getRequestURL().toString() + "?" + request.getQueryString();
}
I don't know about a way to do this with any Spring MVC facilities.
If you want to access the current Request without passing it everywhere you will have to add a listener in the web.xml:
<listener>
<listener-class>o...
What's the difference between dynamic (C# 4) and var?
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var is static typed - the compiler and runtime know the type - they just save you some typing... the following are 100% identical:
var s = "abc";
Console.WriteLine(s.Length);
and
string s = "abc";
Console.WriteLine(s.Length);
All that happened was that the compiler f...