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What is recursion and when should I use it?
...re
edited Dec 26 '16 at 1:59
community wiki
7 r...
Number of elements in a javascript object
...
158
Although JS implementations might keep track of such a value internally, there's no standard wa...
How to round an average to 2 decimal places in PostgreSQL?
...on is only available for numeric.
regress=> SELECT round( float8 '3.1415927', 2 );
ERROR: function round(double precision, integer) does not exist
regress=> \df *round*
List of functions
Schema | Name | Result data type | Argument data types | Type
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Javascript reduce() on Object
... |
edited Sep 3 '19 at 14:59
answered Aug 20 '17 at 16:54
D...
PHP expects T_PAAMAYIM_NEKUDOTAYIM?
...
Nikola Miljković
1561111 bronze badges
answered Feb 26 '09 at 20:36
GumboGumbo
572k100100 gold b...
Why does Java switch on contiguous ints appear to run faster with added cases?
...e down to the default value of the MinJumpTableSize JVM flag (around line 352 in the code).
I have raised the issue on the hotspot compiler list and it seems to be a legacy of past testing. Note that this default value has been removed in JDK 8 after more benchmarking was performed.
Finally, when ...
How to check whether a file is empty or not?
...r
– Daniel Stutzbach
Mar 24 '10 at 15:16
4
Note that the file types work for json, too. Sometimes...
The tilde operator in Python
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edited Apr 23 '12 at 22:55
answered Nov 29 '11 at 3:02
wb...
Should you always favor xrange() over range()?
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edited Apr 8 '14 at 12:05
Bonifacio2
2,59144 gold badges2828 silver badges4242 bronze badges
answered ...
How to show all shared libraries used by executables in Linux?
...ib64/libdbus-1.so.3
4 /lib64/libresolv.so.2
4 /lib64/libtermcap.so.2
5 /lib64/libacl.so.1
5 /lib64/libattr.so.1
5 /lib64/libcap.so.1
6 /lib64/librt.so.1
7 /lib64/libm.so.6
9 /lib64/libpthread.so.0
13 /lib64/libselinux.so.1
13 /lib64/libsepol.so.1
22 /lib64/libdl.so.2
83 /lib64/ld...