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Check for array not empty: any?
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251
any? isn't the same as not empty? in some cases.
>> [nil, 1].any?
=> true
>> [...
How do I test which class an object is in Objective-C?
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edited Feb 8 '17 at 9:02
Muruganandham K
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answ...
Converting a Uniform Distribution to a Normal Distribution
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TylerTyler
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Why doesn't println! work in Rust unit tests?
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edited Sep 13 at 1:32
L. F.
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answered Aug 3 '...
How to provide different Android app icons for different gradle buildTypes?
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162
Figured it out. What you need to do is create a separate src folder called debug that holds the ...
HMAC-SHA1 in bash
...ipt.
[me@home] echo -n "value" | openssl dgst -sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Or simply:
[me@home] echo -n "value" | openssl sha1 -hmac "key"
57443a4c052350a44638835d64fd66822f813319
Remember to use -n with echo or else a line break character is appended to the strin...
What is a .h.gch file?
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edited Oct 2 '16 at 6:15
Moinuddin Quadri
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Get local href value from anchor (a) tag
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263
The below code gets the full path, where the anchor points:
document.getElementById("aaa").hr...
What does a double * (splat) operator do
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Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a Hash with key / value pairs.
For this code:
def foo(a, *b, **c)
[a, b, c]
end
Here's a demo:
> foo 10
=> [10, [], {}]
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