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Passing an array to a function with variable number of args in Swift
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98
Splatting is not in the language yet, as confirmed by the devs. Workaround for now is to use an...
How to check if a variable is set in Bash?
...
(Usually) The right way
if [ -z ${var+x} ]; then echo "var is unset"; else echo "var is set to '$var'"; fi
where ${var+x} is a parameter expansion which evaluates to nothing if var is unset, and substitutes the string x otherw...
Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...s. e.g Eclipse, Visual Studio.
A Library is a chunk of code that you can call from your own code, to help you do things more quickly/easily. For example, a Bitmap Processing library will provide facilities for loading and manipulating bitmap images, saving you having to write all that code for your...
Bash ignoring error for a particular command
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Lars KotthoffLars Kotthoff
98.3k1313 gold badges176176 silver badges180180 bronze badges
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How to detect page zoom level in all modern browsers?
...n bigger mess than it was when this question was first asked. From reading all the responses and blog posts I could find, here's a summary. I also set up this page to test all these methods of measuring the zoom level.
Edit (2011-12-12): I've added a project that can be cloned: https://github.com/t...
Convert bytes to a string
... very common encoding, but you
# need to use the encoding your data is actually in.
>>> b"abcde".decode("utf-8")
'abcde'
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What is the maximum length of a URL in different browsers?
...00 characters
If you keep URLs under 2000 characters, they'll work in virtually any combination of client and server software.
If you are targeting particular browsers, see below for more details specific limits.
Longer answer - first, the standards...
RFC 2616 (Hypertext Transfer Protocol HTTP/1.1)...
Reason to Pass a Pointer by Reference in C++?
...r by reference. For instance, if you have a class holding data in a dynamically allocated array, but you want to provide (nonconstant) access to this data to the client. At the same time, you do not want the client to be able to manipulate the memory through the pointer.
– user...
Least common multiple for 3 or more numbers
...s."""
return reduce(lcm, args)
Usage:
>>> lcmm(100, 23, 98)
112700
>>> lcmm(*range(1, 20))
232792560
reduce() works something like that:
>>> f = lambda a,b: "f(%s,%s)" % (a,b)
>>> print reduce(f, "abcd")
f(f(f(a,b),c),d)
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Javascript for “Add to Home Screen” on iPhone?
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Dan Dascalescu
98.3k3737 gold badges263263 silver badges333333 bronze badges
answered Feb 12 '11 at 5:11
CraigCraig
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