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How to atomically delete keys matching a pattern using Redis
...on of @mcdizzle's idea in his answer to this question. Credit for the idea 100% goes to him.
EDIT: Per Kikito's comment below, if you have more keys to delete than free memory in your Redis server, you'll run into the "too many elements to unpack" error. In that case, do:
for _,k in ipairs(redis.c...
SQL Server SELECT INTO @variable?
...TempCustomer TABLE
(
CustomerId uniqueidentifier,
FirstName nvarchar(100),
LastName nvarchar(100),
Email nvarchar(100)
);
INSERT INTO
@TempCustomer
SELECT
CustomerId,
FirstName,
LastName,
Email
FROM
Customer
WHERE
CustomerId = @CustomerId
...
Detect if a NumPy array contains at least one non-numeric value?
...ny()
Edit: 30x faster:
import timeit
s = 'import numpy;a = numpy.arange(10000.).reshape((100,100));a[10,10]=numpy.nan'
ms = [
'numpy.isnan(a).any()',
'any(numpy.isnan(x) for x in a.flatten())']
for m in ms:
print " %.2f s" % timeit.Timer(m, s).timeit(1000), m
Results:
0.11 s num...
How do you get AngularJS to bind to the title attribute of an A tag?
...e not using a very earlier version of Angular). Here's a demo fiddle using v1.2.2:
Fiddle
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What is a clean, pythonic way to have multiple constructors in Python?
...holes
@classmethod
def random(cls):
return cls(randint(0, 100))
@classmethod
def slightly_holey(cls):
return cls(randint(0, 33))
@classmethod
def very_holey(cls):
return cls(randint(66, 100))
Now create object like this:
gouda = Cheese()
emmental...
How to deal with SettingWithCopyWarning in Pandas?
...en nas
df.iloc[(df.A > 5).values, 1] = 4
And,
df.loc[1, 'A'] = 100
Can be written as
df.iloc[1, 0] = 100
And so on.
Just tell me how to suppress the warning!
Consider a simple operation on the "A" column of df. Selecting "A" and dividing by 2 will raise the warning, bu...
How do I delete a Git branch locally and remotely?
... man git-branch]
Delete Remote Branch [Updated on 8-Sep-2017]
As of Git v1.7.0, you can delete a remote branch using
$ git push <remote_name> --delete <branch_name>
which might be easier to remember than
$ git push <remote_name> :<branch_name>
which was added in Git ...
MongoDB Aggregation: How to get total records count?
... $count: 'count'
}
]
}
]);
The result will be (with for ex 100 total results):
[
{
"paginatedResults":[{...},{...},{...}, ...],
"totalCount":[{"count":100}]
}
]
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How to configure an app to run correctly on a machine with a high DPI setting (e.g. 150%)?
...0" encoding="utf-8"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" >
<assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
<...
Are Javascript arrays sparse?
...k you actually get a dense array if you say something like foo = new Array(10000). However, this is supposed to work: foo = Array.apply(null, {length: 10});.
– doubleOrt
Oct 2 '17 at 11:04
...