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How would you count occurrences of a string (actually a char) within a string?
I am doing something where I realised I wanted to count how many / s I could find in a string, and then it struck me, that there were several ways to do it, but couldn't decide on what the best (or easiest) was.
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How do I push a new local branch to a remote Git repository and track it too?
...ublish Branch" in Visual Studio does. After executing git push with -u parameter i can finally see my branch as published in VS UI.
– Puterdo Borato
Mar 19 '15 at 11:19
6
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Make absolute positioned div expand parent div height
...You answered the question by yourself: "I know that absolute positioned elements are removed from the flow, thus ignored by other elements." So you can't set the parents height according to an absolutely positioned element.
You either use fixed heights or you need to involve JS.
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Does a `+` in a URL scheme/host/path represent a space?
...g sislands.com/coin70/week6/encoder.htm keyone.co.uk/tools-url-encoder.asp meyerweb.com/eric/tools/dencoder
– leonbloy
Jul 15 '10 at 16:01
11
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How do I assign an alias to a function name in C++?
It's easy to create a new name for a type, a variable or a namespace. But how do I assign a new name to a function? For example, I want to use the name holler for printf . #define is obvious... any other way?
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How do I copy a hash in Ruby?
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The clone method is Ruby's standard, built-in way to do a shallow-copy:
irb(main):003:0> h0 = {"John" => "Adams", "Thomas" => "Jefferson"}
=> {"John"=>"Adams", "Thomas"=>"Jefferson"}
irb(main):004:0> h1 = h0.clone...
How to replace a hash key with another key
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Saved me a couple LOC, love it!
– nicohvi
Jun 15 '14 at 21:41
10
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Find and replace strings in vim on multiple lines
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The :&& command repeats the last substitution with the same flags. You can supply the additional range(s) to it (and concatenate as many as you like):
:6,10s/<search_string>/<replace_string>/g | 14,18&&
If you have many ranges though, I'd rather use a loop:
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When should I use Memcache instead of Memcached?
It seems that PHP has two memcached libraries named memcache and memcached . What is the difference and how do you know which one to use? Is one outdated? It seems that memcached offers more methods so I would assume that means it has had the most development - but it also seems to require exter...
Is log(n!) = Θ(n·log(n))?
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Remember that
log(n!) = log(1) + log(2) + ... + log(n-1) + log(n)
You can get the upper bound by
log(1) + log(2) + ... + log(n) <= log(n) + log(n) + ... + log(n)
= n*log(n)
And you can...