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What's the difference between a Future and a Promise?
..., and its javadoc explains:
A Future that may be explicitly completed (setting its value and status), and may be used as a CompletionStage, supporting dependent functions and actions that trigger upon its completion.
An example is also given on the list:
f.then((s -> aStringFunction(s))....
Find the most frequent number in a numpy vector
...r loop
>>>
>>> max(map(lambda val: (a.count(val), val), set(a)))[1]
12
>>> %timeit max(map(lambda val: (a.count(val), val), set(a)))[1]
100000 loops, best of 3: 4.11 µs per loop
>>>
Best is 'max' with 'set' for small arrays like the problem.
According to @Da...
Multiple arguments to function called by pthread_create()?
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__proto__ VS. prototype in JavaScript
...e chain. Car.prototype is not a temporary object. It is the object that is set as the value of the __proto__ property of any new objects made using Car as a constructor. If you want to think of anything as a blueprint object, think of Car as a blueprint for new car-objects.
– s...
How to split() a delimited string to a List
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Sort a Map by values
... List<Entry<K, V>> list = new ArrayList<>(map.entrySet());
list.sort(Entry.comparingByValue());
Map<K, V> result = new LinkedHashMap<>();
for (Entry<K, V> entry : list) {
result.put(entry.getKey(), entry.getValue());
...
Why does Lua have no “continue” statement?
... use do break end inside for effect of continue. Naturally, you'll need to set up additional flags if you also intend to really break out of loop as well.
This will loop 5 times, printing 1, 2, and 3 each time.
for idx = 1, 5 do
repeat
print(1)
print(2)
print(3)
...
Android ViewPager - Show preview of page on left and right
...
To show preview of left and right pages set the following two values
viewpager.setClipToPadding(false);
viewpager.setPadding(left,0,right,0);
If you need space between two pages in the viewpager then add
viewpager.setPageMargin(int);
...
Java - escape string to prevent SQL injection
...ction conn = null;
PreparedStatement stmt = null;
try {
conn = setupTheDatabaseConnectionSomehow();
stmt = conn.prepareStatement("INSERT INTO person (name, email) values (?, ?)");
stmt.setString(1, name);
stmt.setString(2, email);
stmt.executeUpdate();
}
fin...
Is it possible to print a variable's type in standard C++?
...ich can turn an expression into a type. And decltype() comes with its own set of very interesting rules. For example decltype(a) and decltype((a)) will generally be different types (and for good and understandable reasons once those reasons are exposed).
Will our trusty typeid(a).name() help us e...