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Choosing between std::map and std::unordered_map [duplicate]
... think it's obvious that you'd use the std::map you need to iterate across items in the map in sorted order.
You might also use it when you'd prefer to write a comparison operator (which is intuitive) instead of a hash function (which is generally very unintuitive).
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How do I vertically align something inside a span tag?
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The flexbox way:
.foo {
display: flex;
align-items: center;
justify-content: center;
height: 50px;
}
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In Python, how do I index a list with another list?
...h:
a = [1,"A", 34, -123, "Hello", 12]
b = [0, 2, 5]
from operator import itemgetter
print(list(itemgetter(*b)(a)))
[1, 34, 12]
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Checking for empty queryset in Django
...:
if orgs.exists():
# Do something
or you can check for a the first item in a queryset, if it doesn't exist it will return None:
if orgs.first():
# Do something
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How to change users in TortoiseSVN
...ick Clear beside Authentication Data (see below).
Check the authentication items to clear.
Click OK.
All saved Authentication Data for all projects is deleted.
You will have to re-enter credentials to reconnect.
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Find the most frequent number in a numpy vector
...;>> %timeit collections.Counter(a).most_common()[0][0]
100000 loops, best of 3: 11.3 µs per loop
>>>
>>> import numpy
>>> numpy.bincount(a).argmax()
3
>>> %timeit numpy.bincount(a).argmax()
100 loops, best of 3: 2.84 ms per loop
>>>
>>> ...
Place cursor at the end of text in EditText
...ut in old versions it takes some time after the first click...all my other items does'nt become clickable...any clue??
– VijayRaj
Sep 10 '13 at 7:29
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What is the use of the @Temporal annotation in Hibernate?
...hich can be used to store in the database table on of the following column items:
DATE (java.sql.Date)
TIME (java.sql.Time)
TIMESTAMP (java.sql.Timestamp)
Generally when we declare a Date field in the class and try to store it.
It will store as TIMESTAMP in the database.
@Temporal
private Date...
How may I align text to the left and text to the right in the same line?
...e solutions here will work, none handle overlap well and end up moving one item to below the other. If you are trying to layout data that will be dynamically bound you won't know until runtime that it looks bad.
What I like to do is simply create a single row table and apply the right float on the ...
Eloquent Collection: Counting and Detect Empty
...u did $r = Model::get() and then $r->first() it will pick out the first item within that collection.
– Gary Green
Dec 14 '13 at 18:35
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