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Wolfram's Rule 34 in XKCD [closed]
...ur of rule 34: http://atlas.wolfram.com/01/01/34/
Hilighted rules (Wolfram selection): http://atlas.wolfram.com/01/01/
Index of all 256 rules: http://atlas.wolfram.com/01/01/rulelist.html
The book contains thousands of nice little diagrams.
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Create table in SQLite only if it doesn't exist already
...bles with the name
tablename = 'KABOOM'
cursor.execute("SELECT count(name) FROM sqlite_master WHERE type='table' AND name=? ", (tablename, ))
print(cursor.fetchone()) # this SHOULD BE in a tuple containing count(name) integer.
# check if the db has existing table...
What's the difference between backtracking and depth first search?
...to searching tree structures. From Wikipedia:
One starts at the root (selecting some node as the root in the graph case) and explores as far as possible along each branch before backtracking.
It uses backtracking as part of its means of working with a tree, but is limited to a tree structure....
Calculate text width with JavaScript
...er, div in this case, does not have any other styles applied to it via css selection rules that you may not be cognizant of at the time. Strip all relevant styles from the container before applying the ones you care about before measuring.
– Jason Bunting
Sep 2...
MySQLDump one INSERT statement for each data row
...tings. See the discussion of mysqldump option groups for information about selectively enabling or disabling a subset of the options affected by --opt.
--skip-extended-insert
Turn off extended-insert
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Does JavaScript guarantee object property order?
...ruenbaum Your comment is false. In ES2015 the order is guaranteed only for selected methods. See answer of ftor below.
– Piotr Dobrogost
Oct 7 '16 at 15:34
add a comment
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Pass complex parameters to [Theory]
...ssing a custom type as the Theory input which seems to be missing from the selected answer.
– J.D. Cain
Aug 28 '19 at 11:32
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Disable Visual Studio devenv solution save dialog
... C:\Program Files (x86)\Common Files\microsoft shared\MSEnv\VSLauncher.exe
Select Properties
Click Compatibility
Set "Run this program as an administrator".
I also did the same for C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\devenv.exe.
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Nullable Foreign Key bad practice?
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Using NULL would be a good way to clean up incomplete orders:
SELECT * FROM `orders`
WHERE `started_time` < (UNIX_TIMESTAMP() + 900) AND `customer_id` IS NULL
The above would show orders older than 15 minutes without a related customer ID.
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Non greedy (reluctant) regex matching in sed?
...nswering your question
Using approach #2 (delimited expression) you should select two appropriate expressions:
EDE: [^:/]\/
SDE: http:
Usage:
$ sed 's/\([^:/]\/\).*/\1/g; s/\(\(http:.*\)*.\)*/\1/' <<< 'http://www.suepearson.co.uk/product/174/71/3816/'
Output:
http://www.suepearson.co.u...