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What do the &,
...ote the YAML spec here:
Repeated nodes (objects) are first identified by an anchor (marked with the ampersand - “&”), and are then aliased (referenced with an asterisk - “*”) thereafter.
So parts of your example
development: &default
adapter: postgresql
database: dev_deve...
isset() and empty() - what to use
...e but a non-value) that evaluate to false will return true when tested for by isset and false when tested by 'empty'.
So use isset() when you're concerned about the existence of a variable. And use empty when you're testing for true or false. If the actual type of emptiness matters, use is_null an...
Number of elements in a javascript object
...ngth function itself! And while in this simple example you could avoid it by just using a normal function, that doesn't mean you can stop other scripts from doing this. so what do you do? Ignore function properties?
Object.prototype.length = function()
{
var i = 0;
for ( var p in this )
{
...
jQuery AJAX cross domain
...9a6f75849b"
X-Runtime: 0.913606
Content-Length: 6
Server: WEBrick/1.3.1 (Ruby/1.9.2/2011-07-09)
Date: Thu, 01 Mar 2012 20:44:28 GMT
Connection: Keep-Alive
Easy as it is, it does have some browser limitations. See http://caniuse.com/#feat=cors.
...
How to stop IntelliJ truncating output when I run a build?
...
By a popular request Override console cycle buffer size setting was added to the UI 9/14/16:
Original answer for older versions:
Edit your IDEA_HOME\bin\idea.properties file, and increase this setting:
#---------------...
How do I convert an integer to string as part of a PostgreSQL query?
...use the number can be up to 15 digits, you'll meed to cast to an 64 bit (8-byte) integer. Try this:
SELECT * FROM table
WHERE myint = mytext::int8
The :: cast operator is historical but convenient. Postgres also conforms to the SQL standard syntax
myint = cast ( mytext as int8)
If you have ...
Android: HTTP communication should use “Accept-Encoding: gzip”
... find out: (1) some google services require the user agent string provided by the client to contain the string gzip to really enable gzip compression. (2) keep in mind that the server may not gzip the response if it is too small...
– sven
Jun 17 '11 at 7:30
...
Select DISTINCT individual columns in django?
...
User order by with that field, and then do distinct.
ProductOrder.objects.order_by('category').values_list('category', flat=True).distinct()
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binning data in python with scipy/numpy
...form operations of this type:
import numpy_indexed as npi
print(npi.group_by(np.digitize(data, bins)).mean(data))
This is essentially the same solution as the one I posted earlier; but now wrapped in a nice interface, with tests and all :)
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Multiline syntax for piping a heredoc; is this portable?
...ine_list
| /* empty */
So a pipe symbol can be followed by an end-of-line and still be considered part of a pipeline.
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