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Get unique values from a list in python [duplicate]
...ch, 2019
And a 3rd solution, which is a neat one, but kind of slow since .index is O(n).
mylist = [u'nowplaying', u'PBS', u'PBS', u'nowplaying', u'job', u'debate', u'thenandnow']
unique = [x for i, x in enumerate(mylist) if i == mylist.index(x)]
UPDATE - Oct, 2016
Another solution with reduce, ...
Mysql order by specific ID values
... ORDER BY FIELD(ID,1,5,4,3)
It uses Field() function, Which "Returns the index (position) of str in the str1, str2, str3, ... list. Returns 0 if str is not found" according to the documentation. So actually you sort the result set by the return value of this function which is the index of the fiel...
how to remove css property using javascript?
...sRules[0].style.removeProperty("zoom");
Caveat #1: You have to know the index of your stylesheet and the index of your rule.
Caveat #2: This object is implemented inconsistently by the browsers; what works in one may not work in the others.
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How do I make a branch point at a specific commit? [duplicate]
... away any uncommitted changes (i.e. those just in your working tree or the index).
You can also force an update to a branch with:
git branch -f master 1258f0d0aae
... but git won't let you do that if you're on master at the time.
...
How to create a date object from string in javascript [duplicate]
...
var d = new Date(2011,10,30);
as months are indexed from 0 in js.
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Center Align on a Absolutely Positioned Div
...idth, as follows:
div#thing {
position: absolute;
top: 0px;
z-index: 2;
width:400px;
margin-left:-200px;
left:50%;
}
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SQLite: How do I save the result of a query as a CSV file?
...')
df = pd.read_sql('SELECT * from orders', conn)
df.to_csv('orders.csv', index = False)
You can customize the query to only export part of the sqlite table to the CSV file.
You can also run a single command to export all sqlite tables to CSV files:
for table in c.execute("SELECT name FROM sqlite_...
ICollection Vs List in Entity Framework
...d and remove items to an ICollection<T>
You can do random access (by index) to a List<T>
Out of those, ICollection and IEnumerable map well to database operations, since querying and adding/removing entities are things you might do in a DB.
Random access by index doesn't map as well, ...
Data structure for loaded dice?
...er to increase accuracy of the probability.
Populate this array using the index (normalized by xN) as the cumulative value and, in each 'slot' in the array, store the would-be dice roll if this index comes up.
Maybe I could explain easier with an example:
Using three dice: P(1) = 0.2, P(2) = 0.5,...
MySQL JOIN the most recent row only?
... main table, and testing with a where condition that selects 1000 records. Indexes are optimal.
– Timo
Dec 4 '15 at 9:14
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