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What exactly are iterator, iterable, and iteration?
... @jlh why would __len__ be necessarily tied to iteration? How would knowing the length of something help you iterate over it?
– shadowtalker
Sep 19 '18 at 6:45
2
...
Can I use GDB to debug a running process?
.../sys/kernel/yama/ptrace_scope depending on your requirements. Many systems now default to 1 or higher.
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
0 - classic ptrace permissions: a process can PTRACE_ATTACH to any other
process running under the same uid, as long as it is dump...
Adding a simple UIAlertView
...as added in iOS 8, this code won't work on iOS 7 and older. So, sadly, for now we have to use version checks like so:
NSString *alertTitle = @"Title";
NSString *alertMessage = @"Message";
NSString *alertOkButtonText = @"Ok";
if (@available(iOS 8, *)) {
UIAlertView *alertView = [[UIAlertView al...
How do you update Xcode on OSX to the latest version?
...ode is currently version 7.2. But need 7.3 to develop for my iPhone which now is on version 9.3 of iOS.
– Alyoshak
Mar 29 '16 at 14:31
23
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range() for floats
...
I don't know a built-in function, but writing one like this shouldn't be too complicated.
def frange(x, y, jump):
while x < y:
yield x
x += jump
As the comments mention, this could produce unpredictable results like:...
Spring @PropertySource using YAML
...go. It doesn't work with recent versions of Spring Boot. This is what I do now (please translate the Kotlin to Java if necessary):
@TestPropertySource(locations=["classpath:application.yml"])
@ContextConfiguration(
initializers=[ConfigFileApplicationContextInitializer::class]
)
is added t...
Check if a div exists with jquery [duplicate]
Yes, I know this has been asked a lot.
But, it confuses me, since the results on google for this search show different methods (listed below)
...
Pretty-Printing JSON with PHP
...
Thanks, this is the best way to do it now. I didn't have php 5.4 back when I asked this question though...
– Zach Rattner
Feb 3 '12 at 16:38
9
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Vim: Replacing a line with another one yanked before
...
This has the additional disadvantage
that line X is now in the default
register, which is annoying if I find
another line that should be replaced
with A.
To delete text without affecting the normal registers, you can use the Black hole register "_:
"_dd
...
How to show a dialog to confirm that the user wishes to exit an Android Activity?
...
This is the method() what I am looking for but I did not know where to call this method().
– user2841300
Dec 18 '13 at 9:07
...