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Email address validation using ASP.NET MVC data type attributes
...e solution is to use EmailAddressAttribute which resides inside System.ComponentModel.DataAnnotations.
Your code should look similar to this:
[Display(Name = "Email address")]
[Required(ErrorMessage = "The email address is required")]
[EmailAddress(ErrorMessage = "Invalid Email Address")]
public s...
Installing PIL with pip
...
Install Xcode and Xcode Command Line Tools as mentioned.
Use Pillow instead, as PIL is basically dead. Pillow is a maintained fork of PIL.
https://pypi.python.org/pypi/Pillow/2.2.1
pip install Pillow
If you have both Pythons installed and want to install this for Python3...
Fatal error: “No Target Architecture” in Visual Studio
...lves (they are not self-contained), because of dependencies.
windef.h is one of the files automatically included with windows.h.
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Trying to fix line-endings with git filter-branch, but having no luck
...
The easiest way to fix this is to make one commit that fixes all the line endings. Assuming that you don't have any modified files, then you can do this as follows.
# From the root of your repository remove everything from the index
git rm --cached -r .
# Change...
What is the Python equivalent of Matlab's tic and toc functions?
...
Apart from timeit which ThiefMaster mentioned, a simple way to do it is just (after importing time):
t = time.time()
# do stuff
elapsed = time.time() - t
I have a helper class I like to use:
class Timer(object):
def __init__(self, name=None):
self.na...
What reason is there to use null instead of undefined in JavaScript?
...s in the conventions of how you use them in your system. As some have mentioned, some people use null for meaning "no object" where you might sometimes get an object while undefined means that no object was expected (or that there was an error). My problem with that is its completely arbitrary, and ...
C++ compiling on Windows and Linux: ifdef switch [duplicate]
...nd Windows. There are some pieces of code that I want to include only for one operating system and not the other. Is there a standard #ifdef that once can use?
...
Is it possible to make a div 50px less than 100% in CSS3? [duplicate]
...ommended which were only for prior versions.
– casperOne
Jun 21 '12 at 15:06
...
Access multiple elements of list knowing their index
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The problem w/ the first one is that __getitem__ doesn't seem to be compasable eg how to map the type of the item? map(type(a.__getitem__), b)
– alancalvitti
Jan 7 '19 at 19:17
...
What are the Ruby Gotchas a newbie should be warned about? [closed]
... function as scope resolution operators.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_f). It is insufficient to append a dot (99.), because numbers are susceptible to method syntax.
Boolean evaluation of non-boolean data is strict: 0, ""...