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How to count items in a Go map?
...ed from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map elements. The original author was Simone Carletti. Attribution det...
How do I check if a number is positive or negative in C#?
...
bool positive = number > 0;
bool negative = number < 0;
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How to check a string for specific characters?
...(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if any((c in chars) for c in s):
print('Found')
else:
print('Not Found')
[Edit: added the '$' in s answers]
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Scala: what is the best way to append an element to an Array?
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206
You can use :+ to append element to array and +: to prepend it:
0 +: array :+ 4
should produ...
How to grab substring before a specified character jQuery or JavaScript
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var streetaddress= addy.substr(0, addy.indexOf(','));
While it's not the best place for definitive information on what each method does (mozilla developer network is better for that) w3schools.com is good for introducing you to syntax.
...
CPU Privilege Rings: Why rings 1 and 2 aren't used?
...art of the modern protection model) only has a concept of privileged (ring 0,1,2) and unprivileged, the benefit to rings 1 and 2 were diminished greatly.
The intent by Intel in having rings 1 and 2 is for the OS to put device drivers at that level, so they are privileged, but somewhat separated fro...
Why is MATLAB so fast in matrix multiplication?
...nd matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied.
...
How to find corresponding log files folder for a web site?
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201
Ok, I've found this property - it's called "site id" and resides in "Advanced Properties" of th...
How can you determine a point is between two other points on a line segment?
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20 Answers
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Bash script processing limited number of commands in parallel
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Augustin
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answered Oct 23 '13 at 13:35
devnulldevnull
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