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What are the Ruby Gotchas a newbie should be warned about? [closed]
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Newbies will have trouble with equality methods:
a == b : checks whether a and b are equal. This is the most useful.
a.eql? b : also checks whether a and b are equal, but it is sometimes more strict (it might check that a ...
Iterate two Lists or Arrays with one ForEach statement in C#
...T 4.
With that, you would be able to write something like:
var numbers = new [] { 1, 2, 3, 4 };
var words = new [] { "one", "two", "three", "four" };
var numbersAndWords = numbers.Zip(words, (n, w) => new { Number = n, Word = w });
foreach(var nw in numbersAndWords)
{
Console.WriteLine(nw....
Setting DEBUG = False causes 500 Error
...red for security reasons. A settings file created with Django 1.5 has this new section which you need to add:
# Hosts/domain names that are valid for this site; required if DEBUG is False
# See https://docs.djangoproject.com/en/1.9/ref/settings/#allowed-hosts
ALLOWED_HOSTS = []
Add your host here...
What is the colon operator in Ruby?
... Ruby does identity comparison. Each string literal, like "foo", creates a new string instance. It works that way because strings in Ruby are mutable. 2. Symbols are global, but more like global constants than global variables, since symbols do not have state. Thus using symbols is not an antipatter...
How should I cast in VB.NET?
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Dim myList AS ArrayList=new ArrayList When you write (From e In myList select CType(e.Name,String)).ToArray() it doesn't work. I came to write ... select CType(e.Name.ToString,String)).ToArray() and I retrieved my smile.
– Bell...
remove nuget package restore from solution
... located in the .nuget folder, there is another section that gets added to new projects... switch it to false.
<!-- We need to ensure packages are restored prior to assembly resolve -->
<BuildDependsOn Condition="$(RestorePackages) == 'false'">
RestorePackages;
$(BuildDependsOn)...
Design Patterns web based applications [closed]
I am designing a simple web-based application. I am new to this web-based domain.I needed your advice regarding the design patterns like how responsibility should be distributed among Servlets, criteria to make new Servlet, etc.
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Struct Constructor in C++?
..., free(f), bptr(b), prev(p), next(n) {}
};
Usage:
unsigned char *bptr = new unsigned char[1024];
blocknode *fblock = new blocknode(1024, btpr);
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Elegant setup of Python logging in Django
...now this is a solved answer already, but as per django >= 1.3 there's a new logging setting.
Moving from old to new is not automatic, so I thought i'll write it down here.
And of course checkout the django doc for some more.
This is the basic conf, created by default with django-admin createpr...
What does “|=” mean? (pipe equal operator)
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Pablo Rivas
54155 silver badges1515 bronze badges
answered Jan 12 '13 at 16:44
Denys SéguretDenys Séguret
32...