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Which version of PostgreSQL am I running?
I'm in a corporate environment (running Debian Linux) and didn't install it myself. I access the databases using Navicat or phpPgAdmin (if that helps). I also don't have shell access to the server running the database.
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How to write file if parent folder doesn't exist?
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Use mkdirp in combination with path.dirname first.
var mkdirp = require('mkdirp');
var fs = require('fs');
var getDirName = require('path').dirname;
function writeFile(path, contents, cb) {
mkdirp(getDirName(path), function (err) {
if (err) return cb(err);
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How do you send a HEAD HTTP request in Python 2?
...ying to do here is get the headers of a given URL so I can determine the MIME type. I want to be able to see if http://somedomain/foo/ will return an HTML document or a JPEG image for example. Thus, I need to figure out how to send a HEAD request so that I can read the MIME type without having to ...
Does a finally block always run?
... @Jason Coco: Terminating (as upon loss of power) is not quite the same thing as exiting; the latter is a more or less organized process culminating in the former. ;p
– user359996
Oct 13 '10 at 6:42
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Reading/parsing Excel (xls) files with Python
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I highly recommend xlrd for reading .xls files.
voyager mentioned the use of COM automation. Having done this myself a few years ago, be warned that doing this is a real PITA. The number of caveats is huge and the documentation is lacking...
How to source virtualenv activate in a Bash script
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Your alias idea worked nicely for me too. Just a note: I had to put it (alias abcdef="source .../bin/activate") in my .zshrc script (or .bashrc for the bash users) for it to work.
– shahins
Aug 6 '16 at 21:15
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iPhone SDK: what is the difference between loadView and viewDidLoad?
...Subview:whatever2];
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self.view = view;
[view release];
And I don't blame you for not using IB. I've stuck with this method for all of Instapaper and find myself much more comfortable with it than dealing with IB's complexities, interface quirks, and unexpected behind-the-scenes behavior.
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How to sort Map values by key in Java?
...());
for (String key : keys) {
String value = map.get(key);
// do something
}
This will iterate across the map in natural order of the keys.
Longer answer
Technically, you can use anything that implements SortedMap, but except for rare cases this amounts to TreeMap, just as using a Map ...
How to avoid java.util.ConcurrentModificationException when iterating through and removing elements
...t that I want to iterate over. While iterating over it I have to remove elements at the same time. Obviously this throws a java.util.ConcurrentModificationException .
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The simplest possible JavaScript countdown timer? [closed]
Just wanted to ask how to create the simplest possible countdown timer.
3 Answers
3
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