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What is “2's Complement”?
...n binary, 1111is a way of writing 1 × 23 + 1 × 22 + 1 × 21 + 1 × 20and if you work it out, that turns out to equal 15 (base 10). That's because it is 8+4+2+1 = 15.
This is all well and good for positive numbers. It even works for negative numbers if you're willing to just stick a min...
Iterating through a range of dates in Python
...t_date).days)):
yield start_date + timedelta(n)
start_date = date(2013, 1, 1)
end_date = date(2015, 6, 2)
for single_date in daterange(start_date, end_date):
print(single_date.strftime("%Y-%m-%d"))
NB: For consistency with the built-in range() function this iteration stops before reach...
get just the integer from wc in bash
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edited Sep 20 '10 at 1:31
answered Sep 19 '10 at 18:40
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leading zeros in rails
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edited Jun 29 '15 at 20:49
Joshua Pinter
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jQuery get mouse position within an element
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answered Nov 22 '10 at 20:05
jballjball
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Case conventions on element names?
...ed or not recommended?
– WarFox
Jul 20 '11 at 13:27
9
@WarFox I don't think anyone has made an of...
Cloning an Object in Node.js
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edited Jun 20 at 9:12
Community♦
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answered Feb 23 '13 at 12:40
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Hibernate throws org.hibernate.AnnotationException: No identifier specified for entity: com..domain.
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answered Dec 7 '10 at 20:40
BozhoBozho
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Determine which element the mouse pointer is on top of in JavaScript
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edited Aug 20 at 14:07
Peter Mortensen
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What does |= (ior) do in Python?
... dicts:
>>> d1 = {"a": 0, "b": 1, "c": 2}
>>> d2 = {"c": 20, "d": 30}
>>> # Merge, |
>>> d1 | d2
{"a": 0, "b": 1, "c": 20, "d": 30}
>>> d1
{"a": 0, "b": 1, "c": 2}
>>> # Update, |=
>>> d1 |= d2
>>> d1
{"a": 0, "b": 1, "c": ...