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What does the “assert” keyword do? [duplicate]
...ception error IF worst thing happens (when you run your application).
Sometime, when you compile your code, you don't get your result and it's a bug. But the application won't crash, and you spend a very hard time to find where is causing this bug.
So, if you put assert, like this:
assert str...
How exactly does the python any() function work?
...nerated as the any function iterates through the values generated one at a time by the generator expression. And, since any short-circuits, it will stop iterating as soon as it sees the first True value. This would be especially handy if you created lst using something like lst = range(-1,int(1e9)) ...
C# Float expression: strange behavior when casting the result float to int
...ompiler and the jit compiler are both allowed to use more precision at any time, and to do so inconsistently. And in fact, they do just that. This question has come up dozens of times on StackOverflow; see stackoverflow.com/questions/8795550/… for a recent example.
– Eric Lip...
What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
...which will allow you to read all
of the columns of the results a row
at a time.
An example would be pulling profile information for one or more users.
SELECT * FROM my_profile WHERE id = '123456'
ExecuteNonQuery is any SQL which
isn't returning values, but is
actually performing some form of wo...
How do I make a delay in Java?
...
If you want to pause then use java.util.concurrent.TimeUnit:
TimeUnit.SECONDS.sleep(1);
To sleep for one second or
TimeUnit.MINUTES.sleep(1);
To sleep for a minute.
As this is a loop, this presents an inherent problem - drift. Every time you run code and then sleep you...
How do I pass command-line arguments to a WinForms application?
...
cant believe i saw that 'string[] args' so many times after a whole year and it never occured to me wtf it was untill now ! haha
– Niklas
Jun 28 '16 at 18:31
...
When a 'blur' event occurs, how can I find out which element focus went *to*?
...on the technique Michiel ended up using:
function showBlur(ev)
{
// Use timeout to delay examination of activeElement until after blur/focus
// events have been processed.
setTimeout(function()
{
var target = document.activeElement;
document.getElementById("focused").value =
...
Python csv string to array
... Python 3 now uses io.StringIO. (Hopefully save Python 3 users a little time). so import io and io.StringIO.
– JStrahl
Jul 20 '12 at 10:08
4
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How to create a new database after initally installing oracle database 11g Express Edition?
...tion instructions.
Note:
For the following procedure: The first time you start SQL Developer
on your system, you must provide the full path to java.exe in step 1.
For step 4, you need a user name and password.
For step 6, you need a host name and port.
To connect to Oracl...
ProcessStartInfo hanging on “WaitForExit”? Why?
...:
EDIT: See answers below for how avoid an ObjectDisposedException if the timeout occurs.
using (Process process = new Process())
{
process.StartInfo.FileName = filename;
process.StartInfo.Arguments = arguments;
process.StartInfo.UseShellExecute = false;
process.StartInfo.RedirectS...