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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
A Rails 3.2.0 app, working fine with Thin web server, both locally and on Heroku cedar stack.
9 Answers
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Rails: What's a good way to validate links (URLs)?
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Simone CarlettiSimone Carletti
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Big O, how do you calculate/approximate it?
...you have this piece of code:
int sum(int* data, int N) {
int result = 0; // 1
for (int i = 0; i < N; i++) { // 2
result += data[i]; // 3
}
return result; // 4
}
This function returns the sum of all the elements of the array, and we ...
How to sum all the values in a dictionary?
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500
As you'd expect:
sum(d.values())
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What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...hod is a constant time operation.
String s = "...stuff...";
for (int i = 0; i < s.length(); i++){
char c = s.charAt(i);
//Process char
}
That's what I would do. It seems the easiest to me.
As far as correctness goes, I don't believe that exists here. It is all based on your...
How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?
...;= 11 && n <= 13) {
return "th";
}
switch (n % 10) {
case 1: return "st";
case 2: return "nd";
case 3: return "rd";
default: return "th";
}
}
The table from @kaliatech is nice, but since the same information is repeated, it opens th...
What is reflection and why is it useful?
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edited Mar 7 at 23:08
Paul Ntshabeleng
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answered Sep 1 '08 at ...
Cleaning up the iPhone simulator
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edited Sep 10 '15 at 21:28
Dave Jarvis
27.6k3535 gold badges157157 silver badges281281 bronze badges
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How to find time complexity of an algorithm
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405
How to find time complexity of an algorithm
You add up how many machine instructions it wi...
Phone: numeric keyboard for text input
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209
You can do <input type="text" pattern="\d*">. This will cause the numeric keyboard to ap...