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Express.js: how to get remote client address
I don't completely understand how I should get a remote user IP address.
16 Answers
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Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]
...))
Alternatively, you could make a wrapper class that implements Iterable and takes a collections, and handles a null collection.
You could then write foreach(T obj : new Nullable<T>(list1))
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Using multiple delimiters in awk
...be useful, but can make things tricky ... as there are often spaces before and after 'this', this will make 2 extra empty field appear in between the space(s) and 'this')
– Olivier Dulac
Oct 15 '14 at 13:36
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What is the difference between sites-enabled and sites-available directory?
What is use of these two directories in apache2 and how can we do it?
3 Answers
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How to get the first non-null value in Java?
...(i != null) return i;
return null;
}
For efficient reasons, you can handle the common cases as follows:
public static <T> T coalesce(T a, T b) {
return a == null ? b : a;
}
public static <T> T coalesce(T a, T b, T c) {
return a != null ? a : (b != null ? b : c);
}
public s...
bash/fish command to print absolute path to a file
Question: is there a simple sh/bash/zsh/fish/... command to print the absolute path of whichever file I feed it?
20 Answers...
Open URL in same window and in same tab
I want to open a link in the same window and in the same tab that contains the page with the link.
14 Answers
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Is there a better way to iterate over two lists, getting one element from each list for each iterati
I have a list of Latitudes and one of Longitudes and need to iterate over the latitude and longitude pairs.
7 Answers
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How do I import global modules in Node? I get “Error: Cannot find module ”?
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I am reading this and can not believe my eyes. So if I install, say express, and then have 20 projects to build on top of express, I need to install it 20 times, for each of them, in every project folder, over and over? I don't have much exper...
Overwrite or override
It might seem to be a stupid question but I'm just so curious and want to use the correct term when talking about the issue. Couldn't find a similar question here so I decided to create a new one.
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