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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...
Commands executed from vim are not recognizing bash command aliases
...
Then add this to your .vimrc so the aliases file is actually read each time you run a shell command from within vim:
let $BASH_ENV = "~/.bash_aliases"
This solution was suggested by "Jakob". See the link below for the original. I tested this on Mac OS X 10.9 and it worked flawlessly!
vim --...
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 far can memory leaks go?
I've run into memory leaks many times. Usually when I'm malloc -ing like there's no tomorrow, or dangling FILE * s like dirty laundry. I generally assume (read: hope desperately) that all memory is cleaned up at least when the program terminates. Are there any situations where leaked memory won't ...
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...
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 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)) ...
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 =
...
How do I get the find command to print out the file size with the file name?
...ar' -exec ls -lh {} \;
just the h extra from jer.drab.org's reply. saves time converting to MB mentally ;)
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