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How do you remove duplicates from a list whilst preserving order?
... a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
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Numbering rows within groups in a data frame
...r) and library(dplyr) answers to make the ranking val column in descending order?
– Przemyslaw Remin
Jul 24 '18 at 9:31
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Access an arbitrary element in a dictionary in Python
...te that "first" may not be an appropriate term here because dict is not an ordered type in Python < 3.6. Python 3.6+ dicts are ordered.
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Random row from Linq to Sql
...de...
throw new NotImplementedException();
}
}
Then just order by ctx.Random(); this will do a random ordering at the SQL-Server courtesy of NEWID(). i.e.
var cust = (from row in ctx.Customers
where row.IsActive // your filter
orderby ctx.Random()
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When should I use Lazy?
...ou have an entity Customer which has properties for Name, PhoneNumber, and Orders. Name and PhoneNumber are regular strings but Orders is a navigation property that returns a list of every order the customer ever made.
You often might want to go through all your customer's and get their name and ph...
RSpec: describe, context, feature, scenario?
...ike this:
#
# The feature/behaviour I'm currently testing
#
describe "item ordering" do
# 1st state of the feature/behaviour I'm testing
context "without a order param" do
...
end
# 2nd state of the feature/behaviour I'm testing
context "with a given order column" do
..
end
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How to flatten tree via LINQ?
...Flatten(node => node.Elements);
If you would prefer flattening in pre-order rather than in post-order, switch around the sides of the Concat(...).
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C# Sort and OrderBy comparison
I can sort a list using Sort or OrderBy. Which one is faster? Are both working on same
algorithm?
7 Answers
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Rspec: “array.should == another_array” but without concern for order
...o compare arrays and make sure that they contain the same elements, in any order. Is there a concise way to do this in RSpec?
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Deny all, allow only one IP through htaccess
...
order deny,allow
deny from all
allow from <your ip>
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