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What are libtool's .la file for?
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140
It is a textual file that includes a description of the library.
It allows libtool to create pl...
What is the difference between .*? and .* regular expressions?
...difference between greedy and non-greedy quantifiers.
Consider the input 101000000000100.
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match ext...
Is there type Long in SQLite?
...|
edited Oct 24 '17 at 11:00
answered Feb 1 '14 at 5:51
Ind...
Convert list to array in Java [duplicate]
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1103
Either:
Foo[] array = list.toArray(new Foo[0]);
or:
Foo[] array = new Foo[list.size()];
lis...
Select 50 items from list at random to write to file
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If the list is in random order, you can just take the first 50.
Otherwise, use
import random
random.sample(the_list, 50)
random.sample help text:
sample(self, population, k) method of random.Random instance
Chooses k unique random elements from a population sequence.
Retu...
Android static object lifecycle
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240
Lets start with a bit of background: What happens when you start an application?
The OS star...
Getting and removing the first character of a string
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170
See ?substring.
x <- 'hello stackoverflow'
substring(x, 1, 1)
## [1] "h"
substring(x, 2)
## ...
How can we prepend strings with StringBuilder?
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Using the insert method with the position parameter set to 0 would be the same as prepending (i.e. inserting at the beginning).
An example is: varStringBuilder.insert(0, "someThing");
It works both for C# and Java
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Is there any difference between DECIMAL and NUMERIC in SQL Server?
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106
They are the same. Numeric is functionally equivalent to decimal.
MSDN: decimal and numeric
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Delete all but the most recent X files in bash
...here's no input.
If you have BSD xargs (including on macOS), you can use -0 to handle NUL-separated input, after first translating newlines to NUL (0x0) chars., which also passes (typically) all filenames at once (will also work with GNU xargs):
ls -tp | grep -v '/$' | tail -n +6 | tr '\n' '\0' | ...