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Parsing a string into a boolean value in PHP
...rue" and what oughtn't is pretty arbitrary; the data I used is categorized based on my needs and aesthetic preferences, yours may differ.
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Shall we always use [unowned self] inside closure in Swift
...
This is great. what if I have an animation that is based on user interaction, but takes a while to finish. And then user moves to another viewController. I guess in that case I should still be using weak rather than unowned right?
– Honey
...
Python time measure function
... time2 = time.time()
print '%s function took %0.3f ms' % (f.func_name, (time2-time1)*1000.0)
return ret
return wrap
And the usage is very simple, just use the @timing decorator:
@timing
def do_work():
#code
Python 3:
def timing(f):
def wrap(*args, **kwargs):
ti...
html select option separator
...on>First</option>
</optgroup>
<optgroup label="_________">
<option>Second</option>
<option>Third</option>
</optgroup>
</select>
disabled option (a bit better):
<select>
<option>Fir...
Better way to sum a property value in an array
...gets explained what it's meant for. I made an even more basic line of code based on your solution and it worked great. let total = 0; items.forEach(item => total += item.price)
– Ian Poston Framer
Jan 26 '19 at 23:03
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How to use the TextWatcher class in Android?
...gered again, starting an infinite loop. You should then add like a boolean _ignore property which prevent the infinite loop.
Exemple:
new TextWatcher() {
boolean _ignore = false; // indicates if the change was made by the TextWatcher itself.
@Override
public void afterTextC...
Use numpy array in shared memory for multiprocessing
...not available anymore) and @Henry Gomersall's answers. You could use shared_arr.get_lock() to synchronize access when needed:
shared_arr = mp.Array(ctypes.c_double, N)
# ...
def f(i): # could be anything numpy accepts as an index such another numpy array
with shared_arr.get_lock(): # synchroniz...
Get ID of last inserted document in a mongoDB w/ Java driver
...me", "Matt" );
collection.insert( doc );
ObjectId id = (ObjectId)doc.get( "_id" );
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Does Java SE 8 have Pairs or Tuples?
...ant to map an index i to a pair / tuple (i, value[i]) , then filter based on the second value[i] element, and finally output just the indices.
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decorators in the python standard lib (@deprecated specifically)
...ed
when the function is used."""
@functools.wraps(func)
def new_func(*args, **kwargs):
warnings.simplefilter('always', DeprecationWarning) # turn off filter
warnings.warn("Call to deprecated function {}.".format(func.__name__),
category=DeprecationW...