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javascript function leading bang ! syntax
....log('cheese')
})()
The first example outputs 'ham' as expected, but the second will throw an error because the i = 2 statement isn't terminated due to the following parenthesis.
Also in concatenated javascript files you don't have to worry if the preceding code has missing semicolons. So no nee...
Set time part of DateTime in ruby
...DateTime.now.beginning_of_day
OR
DateTime.now.change({ hour: 0, min: 0, sec: 0 })
# More concisely
DateTime.now.change({ hour: 0 })
Within a purely Ruby environment:
now = DateTime.now
DateTime.new(now.year, now.month, now.day, 0, 0, 0, now.zone)
OR
now = DateTime.now
DateT...
Will console.log reduce JavaScript execution performance?
...neyLiebrand thanks for the info, that’s good to know. The results of the second test can be optimized in the same way as console.log though. Both of them are functions which produce side-effects.
– tomekwi
Apr 28 '15 at 18:44
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How to get duration, as int milli's and float seconds from ?
...def std::chrono::high_resolution_clock Time;
typedef std::chrono::milliseconds ms;
typedef std::chrono::duration<float> fsec;
auto t0 = Time::now();
auto t1 = Time::now();
fsec fs = t1 - t0;
ms d = std::chrono::duration_cast<ms>(fs);
std::cout << fs.coun...
List comprehension on a nested list?
...t in the generator. This not obvious since in (f(x) for x in l) places the second line of the for-loop equivalent on the left.
– user48956
Jan 11 '18 at 18:11
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What is the maximum length of latitude and longitude? [closed]
...
More on lat/lng precision: mysql.rjweb.org/doc.php/latlng#representation_choices
– Rick James
Mar 4 '19 at 0:08
add a comment
|...
What's the “Content-Length” field in HTTP header?
... in the request's message-headers. " from w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.3
– Roy Guanyu
Oct 23 '16 at 8:46
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...
YouTube Video Embedded via iframe Ignoring z-index?
...=transparent";
}
}
}
</script>
I load it in the footer.php Wordpress file. Code found in comment here (thanks Gerson)
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follo...
Remove all values within one list from another list? [duplicate]
... b):
return [x for x in a if x not in b]
5 tries, average time 12.8 sec
def filter_function(a, b):
return filter(lambda x: x not in b, a)
5 tries, average time 12.6 sec
def modification(a,b):
for x in b:
try:
a.remove(x)
except ValueError:
p...
How to use the IEqualityComparer
...e function causes a big delay from the function without distinct, from 0.6 sec to 3.2 sec!
6 Answers
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