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Dynamic constant assignment
...are the same (for the moment, anyhow), the actual string object itself is different each time the method is called. For example:
def foo
p "bar".object_id
end
foo #=> 15779172
foo #=> 15779112
Perhaps if you explained your use case—why you want to change the value of a constant in a me...
How to run a single test from a rails test suite?
...ns a single test named "name", defined in the MyModelTest class in the specified file. The test_name is formed by taking the test name, prepending it with the word "test", then separating the words with underscores. For example:
class MyModelTest < ActiveSupport::TestCase
test "valid with g...
Trim last character from a string
... definition removing only last character from string is bad solution.
So if we want to "Trim last character from string" we should do something like this
Example as extension method:
public static class MyExtensions
{
public static string TrimLastCharacter(this String str)
{
if(String....
Does delete on a pointer to a subclass call the base class destructor?
...
The destructor of A will run when its lifetime is over. If you want its memory to be freed and the destructor run, you have to delete it if it was allocated on the heap. If it was allocated on the stack this happens automatically (i.e. when it goes out of scope; s...
Connect different Windows User in SQL Server Management Studio (2005 or later)
...
While there's no way to connect to multiple servers as different users in a single instance of SSMS, what you're looking for is the following RUNAS syntax:
runas /netonly /user:domain\username program.exe
When you use the "/netonly" switch, you can log in using remote credentia...
What is the difference between procedural programming and functional programming? [closed]
...ical function, i.e. a function that takes n arguments and returns a value. If the program is executed, this function is logically evaluated as needed.1
A procedural language, on the other hand, performs a series of sequential steps. (There's a way of transforming sequential logic into functional lo...
how to detect search engine bots with php?
...ectory of Spider names
Then you use $_SERVER['HTTP_USER_AGENT']; to check if the agent is said spider.
if(strstr(strtolower($_SERVER['HTTP_USER_AGENT']), "googlebot"))
{
// what to do
}
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How to obtain the query string from the current URL with JavaScript?
...e
Notice that the browser support is still limited on this interface, so if you need to support legacy browsers, stick with the first example or use a polyfill.
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How to call a shell script from python code?
...st.sh'], stdout=PIPE, stderr=PIPE)
stdout, stderr = session.communicate()
if stderr:
raise Exception("Error "+str(stderr))
3 - call script and dump the echo commands of temp.txt in temp_file
import subprocess
temp_file = open("temp.txt",'w')
subprocess.call([executable], stdout=temp_file)
wi...
Do you use source control for your database items? [closed]
...First get src ctrl, then think about a tool.
– ulty4life
Oct 27 '10 at 22:42
1
There's a distribu...