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What is the difference between & and && in Java?
... if any of the two bits is 1 and it returns 0 if any of the bits is 0.
From the wiki page:
http://www.roseindia.net/java/master-java/java-bitwise-and.shtml
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How to create a readonly textbox in ASP.NET MVC3 Razor
... => model.Text)
</div>
Generally, this solution prevents field from editing, but shows value of it.
There is no need for code-behind modifications.
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Getting the class name of an instance?
...created an instance of an object in Python if the function I am doing this from is the base class of which the class of the instance has been derived?
...
Example use of “continue” statement in Python?
...ion by zero can be avoided. I use it often when I need to store the output from programs, but dont want to store the output if the program has crashed. Note, to test the above example, replace the last statement with print 1/float(x), or you'll get zeros whenever there's a fraction, since randint re...
How to recursively download a folder via FTP on Linux [closed]
...work if you only have FTP credentials. Feels weird responding to a comment from 2008 saying the technology I'm stuck with isn't modern :( Good old 2008, I turned 18 on the day you posted your comment.
– aexl
Jun 17 '17 at 19:34
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JavaScript pattern for multiple constructors
... this.foobar = foobar;
}
Foobar.prototype = {
foobar: null
};
Foobar.fromComponents = function(foo, bar) {
var foobar = foo + bar;
return new this(foobar);
};
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django - query filter on manytomany is empty
...ard answer, other possible solution can be achieved using the Q() object.
from django.db.models import Q
filters = Q(manytomany=None)
TestModel.objects.filter(filters)
Negation:
filters = ~Q(manytomany=None)
TestModel.objects.filter(filters)
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Replace all 0 values to NA
... without the [<- function:
A sample data frame dat (shamelessly copied from @Chase's answer):
dat
x y
1 0 2
2 1 2
3 1 1
4 2 1
5 0 0
Zeroes can be replaced with NA by the is.na<- function:
is.na(dat) <- !dat
dat
x y
1 NA 2
2 1 2
3 1 1
4 2 1
5 NA NA
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Haskell export current module with additional imported module
...
There is a simple solution, just export the module from the module:
module Test
( module Test
, module A
) where
import Prelude()
import A
f x = x
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How to disable Golang unused import error
... which would normally be an awful idea but is really useful for saving you from having to jump around the file to get to the import statement and back when you're just trying to compile or test some code file that you are iteratively fleshing out.
– mtraceur
No...