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sed one-liner to convert all uppercase to lowercase?
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@ekkis OSX is using BSD (as mentioned, BSD sed doesn't support it). Try reading the top line of man sed to know which version you're using.
– Ryder
Dec 8 '17 at 10:48
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What exactly are iterator, iterable, and iteration?
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Iteration is a general term for taking each item of something, one after another. Any time you use a loop, explicit or implicit, to go over a group of items, that is iteration.
In Python, iterable and iterator have specific meanings.
An iterable is an object that has an __iter__ method...
how to remove only one style property with jquery
I have a div with this property style="-moz-user-select:none; position:static !important;" .
I need to remove the -moz-user-select
Tried with $(selector).css() but I don't know what value to set because it's "none".
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Ruby on Rails: Delete multiple hash keys
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One of those lesser documented methods. I went looking for something like this while proposing an answer but didn't see it.
– tadman
Oct 13 '09 at 21:41
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Real life example, when to use OUTER / CROSS APPLY in SQL
...n alias
SELECT number,
doubled_number,
doubled_number_plus_one
FROM master..spt_values
CROSS APPLY (SELECT 2 * CAST(number AS BIGINT)) CA1(doubled_number)
CROSS APPLY (SELECT doubled_number + 1) CA2(doubled_number_plus_one)
4) Unpivoting more than one group of columns
Assumes ...
How to determine a Python variable's type?
...mine the variable type in Python?
So if you have a variable, for example:
one = 1
You want to know its type?
There are right ways and wrong ways to do just about everything in Python. Here's the right way:
Use type
>>> type(one)
<type 'int'>
You can use the __name__ attribute to ge...
MySQL vs PostgreSQL for Web Applications [closed]
...ation against both." And if you really, really care, you get in two DBAs (one who specializes in each database) and get them to tune the crap out of the databases, and then choose. It's astonishing how expensive good DBAs are; and they are worth every cent.
When it matters.
Which it probably...
How can I generate random alphanumeric strings?
...le). Having said that, Dan Rigby's answer was almost twice as fast as this one in every test.
– LukeH
Aug 28 '09 at 0:33
6
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How to create a CPU spike with a bash command
...s (4 physical and 4 virtual cores). You'll also want to stress the virtual ones for a full load test.
– Mast
May 21 '15 at 11:53
6
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MongoDB drop every database
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I think when someone wants to drop their databases they aren't wanting to drop the mongo internal databases like admin and local.
– carlin.scott
Apr 21 '16 at 18:27
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