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Can a C# lambda expression have more than one statement?
...Where(i =>
{
bool result;
if (i == "THIS")
result = true;
else if (i == "THAT")
result = true;
else
result = false;
return result;
...
python assert with and without parenthesis
...ing (SyntaxWarning: assertion is always true, perhaps remove parentheses?) if you ran it through a full interpreter, not through IDLE. Because assert is a keyword and not a function, you are actually passing in a tuple as the first argument and leaving off the second argument.
Recall that non-empt...
django: BooleanField, how to set the default value to true?
...
If you're just using a vanilla form (not a ModelForm), you can set a Field initial value ( https://docs.djangoproject.com/en/2.2/ref/forms/fields/#django.forms.Field.initial ) like
class MyForm(forms.Form):
my_field = fo...
Reverse a string in Python
... It works by doing [begin:end:step] - by leaving begin and end off and specifying a step of -1, it reverses a string.
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About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
...!), shell options with set and shopt, etc. For an example, see: My .bashrc
Now, as part of UNIX peculiarity, a login-shell does NOT execute ~/.bashrc but only ~/.profile or ~/.bash_profile, so you should source that one manually from the latter. You'll see me do that in my ~/.profile too: source ~/...
Simple C example of doing an HTTP POST and consuming the response
...sage body separated by a blank line. The blank line is ALWAYS needed even if there is no message body. The header starts with a command and has additional lines of key value pairs separated by a colon and a space. If there is a message body, it can be anything you want it to be.
Lines in the hea...
Manually raising (throwing) an exception in Python
... How do I manually throw/raise an exception in Python?
Use the most specific Exception constructor that semantically fits your issue.
Be specific in your message, e.g.:
raise ValueError('A very specific bad thing happened.')
Don't raise generic exceptions
Avoid raising a generic Exception....
How to convert R Markdown to PDF?
...
Updated Answer (10 Feb 2013)
rmarkdown package:
There is now an rmarkdown package available on github that interfaces with Pandoc.
It includes a render function. The documentation makes it pretty clear how to convert rmarkdown to pdf among a range of other formats. This includes i...
Go Unpacking Array As Arguments
... []int{2,4}
sum := my_func(arr...)
fmt.Println("Sum is ", sum)
}
Now you can sum as many things as you'd like. Notice the important ... after when you call the my_func function.
Running example: http://ideone.com/8htWfx
...
How do you implement a class in C? [closed]
...t (*computeArea)(const ShapeClass *shape); saying that ShapeClass is an unknown type.
– DanielSank
Aug 9 '16 at 9:01
@...