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Significance of -pthread flag when compiling
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to do a regular expression replace in MySQL?
...'Stackoverflow','[A-Zf]','-',1,0,'c');
-- Output:
-tackover-low
DBFiddle Demo
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How to change the Eclipse default workspace?
... erakitin
10.3k55 gold badges3939 silver badges4646 bronze badges
answered Mar 3 '11 at 10:24
Manrico CorazziManrico Corazzi
1...
Converting Long to Date in Java returns 1970
...put of seconds, and multiply by a thousand. Note that the result must be a 64-bit long as we would overflow a 32-bit int.
long input = 1_220_227_200L; // Note the "L" appended to long integer literals.
long milliseconds = ( input * 1_000L ); // Use a "long", not the usual "int". Note the appended "...
Open Cygwin at a specific folder
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Just tested with 64bit cygwin (1.7.27) and chere seems to now exist. pro-tip: remember to launch cygwin terminal with admin privileges.
– BuildTheRobots
Jan 15 '14 at 11:04
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Python list of dictionaries search
...a/quQzv (method names see below).
All tests done with Python 3.6.4, W7x64.
from random import randint
from timeit import timeit
list_dicts = []
for _ in range(1000): # number of dicts in the list
dict_tmp = {}
for i in range(10): # number of keys for each dict
dict_tmp[f...
Change select box option background color
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I don't know if you've considered it or not but if your application is based on coloring various groupings of items you should probably use the <optgroup> tag coupled with a class for further referencing. For example:
<select>
<optgroup label="Numbers" class="green">
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Is there a better way to do optional function parameters in JavaScript? [duplicate]
...en cases: each case implies the next cases are also needed
}
}
Simple demo. This is similar to roenving's answer, but easily extendible for any number of default arguments, easier to update, and using arguments not Function.arguments.
Passing and merging objects for more flexibility
The abo...
Insert into … values ( SELECT … FROM … )
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1648
Try:
INSERT INTO table1 ( column1 )
SELECT col1
FROM table2
This is standard ANSI SQL...
STL or Qt containers?
...tandardized, doesn't change with every Qt version (Qt 2 had QList (pointer-based) and QValueList (value-based); Qt 3 had QPtrList and QValueList; Qt 4 now has QList, and it's nothing at all like QPtrList or QValueList).
Even if you end up using the Qt containers, use the STL-compatible API subset (i...