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Best way to add “current” class to nav in Rails 3
...m using quite the same way as you are. I've just defined helper methods to test for multiple controller or actions:
In application_helper.rb
def controller?(*controller)
controller.include?(params[:controller])
end
def action?(*action)
action.include?(params[:action])
end
Then y...
Is it possible in Java to access private fields via reflection [duplicate]
...public void setStr(String value)
{
str = value;
}
}
class Test
{
public static void main(String[] args)
// Just for the ease of a throwaway test. Don't
// do this normally!
throws Exception
{
Other t = new Other();
t.setStr("hi");
...
Convert NaN to 0 in javascript
... 0;
...which will have the same effect as above.
If the intent was to test for more than just NaN, then you can do the same, but do a toNumber conversion first.
a = +a || 0
This uses the unary + operator to try to convert a to a number. This has the added benefit of converting things like nu...
How can I get the external SD card path for Android 4.0+?
...
}
}
}
return out;
}
The original method was tested and worked with
Huawei X3 (stock)
Galaxy S2 (stock)
Galaxy S3 (stock)
I'm not certain which android version these were on when they were tested.
I've tested my modified version with
Moto Xoom 4.1.2 (stock)
Galax...
Add a new item to a dictionary in Python [duplicate]
...lt_data + {'item3': 3}
{'item2': 2, 'item3': 3, 'item1': 1}
>>> {'test1': 1} + Dict(test2=2)
{'test1': 1, 'test2': 2}
Note that this is more overhead then using dict[key] = value or dict.update(), so I would recommend against using this solution unless you intend to create a new dictionar...
How can I profile C++ code running on Linux?
...
@kizzx2 - you can use gprof2dot and perf script. Very nice tool!
– dashesy
May 14 '12 at 23:55
3
...
Recursively list files in Java
... Files.walk, mostly because there are overloads and it's more convenient.
TESTS: As requested I've provided a performance comparison of many of the answers. Check out the Github project which contains results and a test case.
...
Can an interface extend multiple interfaces in Java?
...same name and signature?
There is a tricky point:
interface A {
void test();
}
interface B {
void test();
}
class C implements A, B {
@Override
public void test() {
}
}
Then single implementation works for both :).
Read my complete post here:
http://codeinventions...
Determine if string is in list in JavaScript
...'b')
This has some inherent benefits over indexOf because it can properly test for the presence of NaN in the list, and can match missing array elements such as the middle one in [1, , 2] to undefined. includes also works on JavaScript typed arrays such as Uint8Array.
If you're concerned about brow...
How to convert array to SimpleXML
...
a short one:
<?php
$test_array = array (
'bla' => 'blub',
'foo' => 'bar',
'another_array' => array (
'stack' => 'overflow',
),
);
$xml = new SimpleXMLElement('<root/>');
array_walk_recursive($test_array, array ($xml...