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Detecting an undefined object property
...ator to get at the special undefined value itself:
if(myVariable === void 0) {
alert("myVariable is the special value `undefined`");
}
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follo...
Age from birthdate in python
...can be done much simpler considering that int(True) is 1 and int(False) is 0:
from datetime import date
def calculate_age(born):
today = date.today()
return today.year - born.year - ((today.month, today.day) < (born.month, born.day))
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Port 80 is being used by SYSTEM (PID 4), what is that?
I am trying to use port 80 for my application server, but when I perform netstat -aon I get:
32 Answers
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Convert blob to base64
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answered Sep 6 '13 at 5:05
Arun KilluArun Killu
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How do I keep Python print from adding newlines or spaces? [duplicate]
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201
import sys
sys.stdout.write('h')
sys.stdout.flush()
sys.stdout.write('m')
sys.stdout.flush()
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Why do we use arrays instead of other data structures?
...nted to look up MyArray[4], internally it would be accessed like this:
0 1 2 3 4
=====================================
| 6 | 4 | 2 | 3 | 1 | 5 |
=====================================
^
MyArray + 4 ---------------/
(Pointer + Offset)
Becau...
Count the items from a IEnumerable without iterating?
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edited Mar 3 '17 at 3:02
ToolmakerSteve
5,19977 gold badges6161 silver badges133133 bronze badges
an...
Reorder / reset auto increment primary key
... have, for example, something like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
15 Answ...
ReactJS - Does render get called any time “setState” is called?
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answered Jul 13 '14 at 3:30
PetrPetr
6,30711 gold badge1313 silver badges1616 bronze badges
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Passing a std::array of unknown size to a function
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edited Jun 17 '13 at 20:36
answered Jun 17 '13 at 20:30
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