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Convert array to JSON
...] which holds a few integers.
I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending?
...
Check difference in seconds between two times
... (dateTime1 - dateTime2).TotalSeconds;
In your case, you 'd use DateTime.Now as one of the values and the time in the list as the other. Be careful of the order, as the result can be negative if dateTime1 is earlier than dateTime2.
...
Two versions of python on linux. how to make 2.7 the default
..., or put it in your ~/.bashrc if you want the change to be persistent, and now when you type python it runs your chosen 2.7, but when some program on your system tries to run a script with /usr/bin/env python it runs the standard 2.6.
Alternatively, just create a virtual environment out of your 2...
How to create a windows service from java app
... your last paragraph. Also, apache commons daemon is the only wrapper i know of that has pre-built 64-bit binaries for free-use.
– djangofan
Nov 8 '11 at 23:41
...
if (key in object) or if(object.hasOwnProperty(key)
...someMap.constructor will yield -> function Object() { [native code] }
Now, if you want to iterate through "someMap" you will have to do it this way:
const key
for(key in someMap ){
if (someMap.hasOwnProperty(key)) {
// Do something
}
}
We are doing so in order to avoid iterating over i...
Hidden features of Perl?
...
There are many non-obvious features in Perl.
For example, did you know that there can be a space after a sigil?
$ perl -wle 'my $x = 3; print $ x'
3
Or that you can give subs numeric names if you use symbolic references?
$ perl -lwe '*4 = sub { print "yes" }; 4->()'
yes
There's a...
Rails 3 - can't install pg gem
...pplications/Postgres.app/Contents/MacOS/bin:$PATH"
gem install pg should now work. (This is what worked for me.)
Note New versions path looks like:
/Applications/Postgres.app/Contents/Versions/<version>/bin
share
...
ALTER TABLE without locking the table?
...'ve been using MySQL for so long that I keep forgetting they have triggers now. I've used this technique and now I have a functional hot-alter script. With a progress bar. And it works with MyISAM. Life is good.
– Daniel
Jan 21 '09 at 12:10
...
REST Complex/Composite/Nested Resources [closed]
...book and return the server generated id (lets say it comes back as 8), and now you can add covers to it like so:
POST http://example.com/comic-books/8/covers
with the cover in the entity body.
Now you have a good question which is what happens if your business rule says there always must be at l...
SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
...wever, that doesn't actually appear to help. That means
that there's no known workaround at this time other than relaunching
the app.
The issue appears to be related to memory pressure, so perhaps being
more aggressive in handling memory warnings may alleviate the problem
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