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How to check if a function exists on a SQL database
... FROM sys.objects
WHERE object_id = OBJECT_ID(N'[dbo].[foo]')
AND type IN ( N'FN', N'IF', N'TF', N'FS', N'FT' ))
DROP FUNCTION [dbo].[foo]
GO
This approach to deploying changes means that you need to recreate all permissions on the object so you might cons...
Why does the C# compiler not fault code where a static method calls an instance method?
The following code has a static method, Foo() , calling an instance method, Bar() :
3 Answers
...
What's the difference between a Python “property” and “attribute”?
...other data).
class MyObject(object):
# This is a normal attribute
foo = 1
@property
def bar(self):
return self.foo
@bar.setter
def bar(self, value):
self.foo = value
obj = MyObject()
assert obj.foo == 1
assert obj.bar == obj.foo
obj.bar = 2
assert obj.foo...
Where to place and how to read configuration resource files in servlet based application?
...ContextClassLoader();
InputStream input = classLoader.getResourceAsStream("foo.properties");
// ...
Properties properties = new Properties();
properties.load(input);
Here foo.properties is supposed to be placed in one of the roots which are covered by the default classpath of a webapp, e.g. webapp'...
Using .text() to retrieve only text not nested in child tags
...e text inside the parent element.
Code provided for easy reference:
$("#foo")
.clone() //clone the element
.children() //select all the children
.remove() //remove all the children
.end() //again go back to selected element
.text();
...
Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...a attribute and then use jQuery to manipulate that:
In HTML:
<span>foo</span>
In jQuery:
$('span').hover(function(){
$(this).attr('data-content','bar');
});
In CSS:
span:after {
content: attr(data-content) ' any other text you may want';
}
If you want to prevent the 'o...
Why doesn't delete set the pointer to NULL?
...nment anyway.
Also, it would render the following code illegal:
T* const foo = new T;
delete foo;
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How to access environment variable values?
... "how to check environment variables in Python."
Here's how to check if $FOO is set:
try:
os.environ["FOO"]
except KeyError:
print "Please set the environment variable FOO"
sys.exit(1)
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Get value of a string after last slash in JavaScript
...
At least three ways:
A regular expression:
var result = /[^/]*$/.exec("foo/bar/test.html")[0];
...which says "grab the series of characters not containing a slash" ([^/]*) at the end of the string ($). Then it grabs the matched characters from the returned match object by indexing into it ([0]...
Malloc vs new — different padding
...e's talking about is more than a straight difference between malloc(sizeof(Foo) * n) vs new Foo[n]. Maybe it's more like:
malloc((sizeof(int) + sizeof(char)) * n);
vs.
struct Foo { int a; char b; }
new Foo[n];
That is, maybe he's saying "I use malloc", but means "I manually pack the data into ...