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How to tell if a tag failed to load
...ISS IMHO).
From the spec:
If the src attribute's value is the
empty string or if it could not be
resolved, then the user agent must
queue a task to fire a simple event
named error at the element, and
abort these steps.
~
If the load resulted in an error (for
example a DNS erro...
Android ViewPager with bottom dots
... app:imageResources="@array/img_id_arr"/>
Create an integer array in strings.xml e.g.
<integer-array name="img_id_arr">
<item>@drawable/img1</item>
<item>@drawable/img2</item>
<item>@drawable/img3</item>
<item>@drawable/img4</item&...
I need to securely store a username and password in Python, what are my options?
...assword` to save username onto keyring
# we're just using some known magic string in the username field
keyring.set_password(service_id, MAGIC_USERNAME_KEY, username)
Later to get your info from the keyring
# again, abusing `get_password` to get the username.
# after all, the keyring is just a ke...
What is the difference between ArrayList.clear() and ArrayList.removeAll()?
Assuming that arraylist is defined as ArrayList<String> arraylist , is arraylist.removeAll(arraylist) equivalent to arraylist.clear() ?
...
Using Java 8's Optional with Stream::flatMap
...de() {
return optional.hashCode();
}
@Override
public String toString() {
return optional.toString();
}
}
You will see that I added flatStream(), as here:
public Stream<T> flatStream() {
if (!optional.isPresent()) {
return Stream.empty();
}
...
What is the motivation for bringing Symbols to ES6?
...t that the :symbol notion in Ruby is needless; we could easily use plain strings instead, like we do in JavaScript. And now they decide to complicate things in JS with that.
...
Printing newlines with print() in R
...
An advantage is that you don't have to remember to append a "\n" to the string passed to cat() to get a newline after your message. E.g. compare the above to the same cat() output:
> cat("File not supplied.\nUsage: ./program F=filename")
File not supplied.
Usage: ./program F=filename>
an...
What does android:layout_weight mean?
...
In a nutshell, layout_weight specifies how much of the extra space in the layout to be allocated to the View.
LinearLayout supports assigning a weight to individual children. This attribute assigns an "importance" value to a view, and allows it to expand to fill any remaining spa...
String to LocalDate
How can i convert a string to a LocalDate ?
5 Answers
5
...
Python time measure function
... return wrap
Note I'm calling f.func_name to get the function name as a string(in Python 2), or f.__name__ in Python 3.
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