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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?
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Perfect! I tested it with 10 chars as length. 100000 tokens and still no duplicates!
– Sharpless512
Feb 26 '14 at 8:13
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Which is more preferable to use: lambda functions or nested functions ('def')?
... see that the lambda and defined versions are roughly equivalent. The last test took more time because python probably needed to allocate space every time it defined that lambda function.
– hlin117
Nov 21 '14 at 6:19
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XmlSerializer: remove unnecessary xsi and xsd namespaces
...s not supported.
// It doesn't throw any exceptions, but in my testing, it didn't always work.
// new XmlQualifiedName(string.Empty, string.Empty), // And don't do this:
// new XmlQualifiedName("", "")
// DO THIS:
new XmlQualifiedName(st...
Can I change the checkbox size using CSS?
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transform: scale(1.5);
}
<label><input type="checkbox"> Test</label>
Compatibility:
IE: 10+
FF: 16+
Chrome: 36+
Safari: 9+
Opera: 23+
iOS Safari: 9.2+
Chrome for Android: 51+
Appearance:
Chrome 58 (May 2017), Windows 10
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How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
...ty linear with the @skip! The row_number approach does NOT have this (only tested on indexed order). For lo @Skip less about 20, the new syntax is faster than the row_number approach though.
– Eske Rahn
Jun 24 '18 at 14:23
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How do I convert a String object into a Hash object?
... ruby hash.
I put this code up on github as well. This code starts with a test string to exercise all the conversions
require 'json'
# Example ruby hash string which exercises all of the permutations of position and type
# See http://json.org/
ruby_hash_text='{"alpha"=>{"first second > thir...
Export specific rows from a PostgreSQL table as INSERT SQL script
...hat, based on @PhilHibbs codes, on a different way.
Please have a look and test.
CREATE OR REPLACE FUNCTION dump(IN p_schema text, IN p_table text, IN p_where text)
RETURNS setof text AS
$BODY$
DECLARE
dumpquery_0 text;
dumpquery_1 text;
selquery text;
selvalue text;
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MongoDb query condition on comparing 2 fields
... constant and filter. This way you avoid javascript execution. Below is my test in python:
import pymongo
from random import randrange
docs = [{'Grade1': randrange(10), 'Grade2': randrange(10)} for __ in range(100000)]
coll = pymongo.MongoClient().test_db.grades
coll.insert_many(docs)
Using agg...
SQL Server: SELECT only the rows with MAX(DATE)
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select OrderNo,PartCode,Quantity
from dbo.Test t1
WHERE EXISTS(SELECT 1
FROM dbo.Test t2
WHERE t2.OrderNo = t1.OrderNo
AND t2.PartCode = t1.PartCode
GROUP BY t2.OrderNo,
t2.PartCode
HAVING t1.DateEntere...
Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
...ly maintains an order. Since a dict has an unpredictable order, what if my test vectors luckily has the same initial order as the unpredictable order of a dict?. For example, if instead of d = OrderedDict({'b':2, 'a':1}) I write d = OrderedDict({'a':1, 'b':2}), I can wrongly conclude that the order ...