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Append a NumPy array to a NumPy array
... argument. Thus if you need to combine more than 2 arrays, vstack is more handy.
– ruhong
Oct 22 '15 at 12:57
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Scrolling child div scrolls the window, how do I stop that?
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Many browser scroll wheels disappear and reappear based on the user moving the mouse now, so the above comment is problem no longer an issue.
– Keith Holliday
Oct 16 '15 at 3:42
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Type List vs type ArrayList in Java [duplicate]
I understand that with (1), implementations of the List interface can be swapped. It seems that (1) is typically used in an application regardless of need (myself I always use this).
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Insert current date in datetime format mySQL
... But it'll use MySQL server locale/timezone. If U have Apache/PHP and MySQL on different servers and timezone set incorrect in one of them U'll have different values.
– Jeff_Alieffson
Nov 24 '13 at 17:57
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There can be only one auto column
... MySQL says "Incorrect table definition; there can be only one auto column and it must be defined as a key" So when I added primary key as below it started working:
CREATE TABLE book (
id INT AUTO_INCREMENT NOT NULL,
accepted_terms BIT(1) NOT NULL,
accepted_privacy BIT(1) NOT NULL,
prim...
How to check whether a Storage item is set?
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Note removed. Thanks @TimothyZorn and Alnitak
– Christian C. Salvadó
Mar 7 '17 at 22:30
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show 2 m...
socket.emit() vs. socket.send()
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I don't know, I checked the source code and they make almost the same (github.com/LearnBoost/socket.io/blob/master/lib/socket.js#L318). Maybe it's historical and just for backwards compatibility.
– Charles
Jul 20 '12 at 6:53
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How do I extract a sub-hash from a hash?
...:d=>:D}
h1 = Hash[h1.to_a - h2.to_a] # => {:a=>:A, :c=>:C}
And if you want to patch that into the Hash class:
class Hash
def extract_subhash(*extract)
h2 = self.select{|key, value| extract.include?(key) }
self.delete_if {|key, value| extract.include?(key) }
h2
end
en...
Missing file warnings showing up after upgrade to Xcode 4
...ing some warnings that I did not get before. I have looked through forums and other SO posts but have not come across how to fix this.
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How to convert a dictionary to query string in Python?
...'foo', 'param2': 'bar'})
output: 'pram1=foo&param2=bar'
for python2 and python3 compatibility, try this:
try:
#python2
from urllib import urlencode
except ImportError:
#python3
from urllib.parse import urlencode
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