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Where does PostgreSQL store the database?
...ific folder is painful as someone else might have installed it for you and now you do not know the configuration, so following sql helps to save the time. :) Thanks Mike.
– Vishal
Jun 14 '13 at 8:54
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Is “Java Concurrency In Practice” still valid? [closed]
...ersions of Java than new versions of the book, so I'm focusing on that for now. Maybe after Project Loom delivers, it'll be different.
– Brian Goetz
Dec 7 '18 at 15:19
4
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In what cases will HTTP_REFERER be empty
I know it's possible to get an empty HTTP_REFERER. Under what circumstances does this happen? If I get an empty one, does it always mean that the user changed it? Is getting an empty one the same as getting a null one? and under what circumstances do I get that too?
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Is mongodb running?
... quickly checking if mongodb is running, this quick nc trick will let you know.
nc -zvv localhost 27017
The above command assumes that you are running it on the default port on localhost.
For auto-starting it, you might want to look at this thread.
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Password masking console application
... @Nadeem - The first \b moves the cursor back one position (now underneath the last * char. The [space] character "prints over" the asterisk, but also moves the cursor one character forward again, so the last \b moves the cursor back to where the last * used to be! (Phew - Hope that...
Client on node: Uncaught ReferenceError: require is not defined
...s because require() does not exist in the browser/client-side JavaScript.
Now you're going to have to make some choices about your client-side JavaScript script management.
You have three options:
Use <script> tag.
Use a CommonJS implementation. Synchronous dependencies like Node.js
Use a...
How to create a HashMap with two keys (Key-Pair, Value)?
...arely you are out of this bounds.
Third, when implementing equals() also know what it is used for and be aware of how you create your keys, since they are objects. Often you do unnecessary if statements cause you will always have the same result.
If you create keys like this: map.put(new Key(x,y),...
Convert php array to Javascript
...d be sensible for someone reading this question to use a library that was known to be secure and well tested, eg from Pear rather than just taking this code on merit. Also, it's worth pointing out that PHP 5.2 was already out of support when this question was asked. As I write now, it has been unsup...
How to access random item in list?
... IEnumerable<T> list)
{
return list.ElementAt(new Random(DateTime.Now.Millisecond).Next(list.Count()));
}
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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
...eird character \x96'.decode('windows-1252')
u'my weird character \u2013'
Now that you have Unicode, you can safely encode into utf-8.
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