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Python: most idiomatic way to convert None to empty string?
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edited Jul 13 '09 at 13:55
Vinko Vrsalovic
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Is it Pythonic to use list comprehensions for just side effects?
Think about a function that I'm calling for its side effects, not return values (like printing to screen, updating GUI, printing to a file, etc.).
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indexOf method in an object array?
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I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { return e.hello; }).indexOf('stevie');
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impr...
How to print color in console using System.out.println?
... data in colors when the processor sends data and in different colors when it receives data.
13 Answers
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CSS styling in Django forms
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Taken from my answer to:
How to markup form fields with <div class='field_type'> in Django
class MyForm(forms.Form):
myfield = forms.CharField(widget=forms.TextInput(attrs={'class' : 'myfieldclass'}))
or
class MyForm(forms.ModelForm):
class Meta:
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Checking if a string array contains a value, and if so, getting its position
... // the array contains the string and the pos variable
// will have its position in the array
}
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How to make an input type=button act like a hyperlink and redirect using a get request? [duplicate]
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There are several different ways to do that -- first, simply put it inside a form that points to where you want it to go:
<form action="/my/link/location" method="get">
<input type="submit" value="Go to my link location"
name="Submit" id="frm1_submit" />...
Why do we usually use || over |? What is the difference?
...ust wondering why we usually use logical OR || between two booleans not bitwise OR | , though they are both working well.
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Display block without 100% width
...her element using the display property. I tried applying inline-block but without success, and figured I could use block if I somehow managed to avoid giving the element a width of 100% (I don't want the element to "stretch out"). Can this be done, or if not, what's good praxis for solving this kind...
Why do we need virtual functions in C++?
...t."
So far so good, right? Animals eat generic food, cats eat rats, all without virtual.
Let's change it a little now so that eat() is called via an intermediate function (a trivial function just for this example):
// This can go at the top of the main.cpp file
void func(Animal *xyz) { xyz->e...