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How to hide UINavigationBar 1px bottom line
...
For iOS 13:
Use the .shadowColor property
If this property is nil or contains the clear color, the bar displays no shadow
For instance:
let navigationBar = navigationController?.navigationBar
let navigationBarAppearence = UINavigationBarAppearance()
navigationBarA...
how to listen to N channels? (dynamic select statement)
...tement, it blocks until at least one of the cases can
proceed, makes a uniform pseudo-random choice, and then executes that
case. It returns the index of the chosen case and, if that case was a
receive operation, the value received and a boolean indicating whether
the value corresponds to a ...
Why was the switch statement designed to need a break?
... Java probably didn't want to break habits and spread confusion. For a different behavior, they would have to use different semantics. Java designers lost a number of opportunities to break from C, anyway.
– PhiLho
Oct 31 '08 at 6:30
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How do you execute an arbitrary native command from a string?
...mpt:
$command = 'C:\somepath\someexe.exe somearg'
iex $command
However, if the exe is in quotes, you need the help of & to get it running, as in this example, as run from the commandline:
>> &"C:\Program Files\Some Product\SomeExe.exe" "C:\some other path\file.ext"
And then in th...
Is it Pythonic to use list comprehensions for just side effects?
...way (I have been known to use a genex in the for before, to get rid of the if).
– Ignacio Vazquez-Abrams
Apr 22 '11 at 8:34
6
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Remove and Replace Printed items [duplicate]
I was wondering if it was possible to remove items you have printed in Python - not from the Python GUI, but from the command prompt.
e.g.
...
Change values while iterating
...that range copies the values from the slice you're iterating over.
The specification about range says:
Range expression 1st value 2nd value (if 2nd variable is present)
array or slice a [n]E, *[n]E, or []E index i int a[i] E
So, range us...
How can I get the external SD card path for Android 4.0+?
...al String[] lines = s.split("\n");
for (String line : lines) {
if (!line.toLowerCase(Locale.US).contains("asec")) {
if (line.matches(reg)) {
String[] parts = line.split(" ");
for (String part : parts) {
if (part.startsWith("...
Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a
We all know you can't do the following because of ConcurrentModificationException :
26 Answers
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Mod in Java produces negative numbers [duplicate]
...e by doing this:
int i = (((-1 % 2) + 2) % 2)
or this:
int i = -1 % 2;
if (i<0) i += 2;
(obviously -1 or 2 can be whatever you want the numerator or denominator to be)
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