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How to list all methods for an object in Ruby?
...loadable?", "update", "reset_sequence_name", "default_timezone=",
"validate_find_options", "find_on_conditions_without_deprecation",
"validates_size_of", "execute_simple_calculation", "attr_protected",
"reflections", "table_name_prefix", ...
Note that methods is a method for Classes...
How to upgrade PowerShell version from 2.0 to 3.0
...load and install from http://www.microsoft.com/en-us/download/details.aspx?id=34595. You need Windows 7 SP1 though.
It's worth keeping in mind that PowerShell 3 on Windows 7 does not have all the cmdlets as PowerShell 3 on Windows 8. So you may still encounter cmdlets that are not present on your ...
Can I get the name of the current controller in the view?
...
In the Rails Guides, it says:
The params hash will always contain the :controller and :action keys, but you should use the methods controller_name and action_name instead to access these values
ActionController Parameters
So let's s...
Toggle button using two image on different state
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Do this:
<ToggleButton
android:id="@+id/toggle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/check" <!--check.xml-->
android:layout_margin="10dp"
a...
How can a LEFT OUTER JOIN return more records than exist in the left table?
... 2
3 5
4 6
SELECT Table1.Id, Table2.Id FROM Table1 LEFT OUTER JOIN Table2 ON Table1.Id=Table2.Id
Results:
1,null
2,2
2,2
3,null
4,null
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How can I select an element with multiple classes in jQuery?
... also swap the classes:
$('.b.a')
So to match a div element that has an ID of a with classes b and c, you would write:
$('div#a.b.c')
(In practice, you most likely don't need to get that specific, and an ID or class selector by itself is usually enough: $('#a').)
...
Android: Last line of textview cut off
...t is needed to disable baseline alignment for the layout by setting:
android:baselineAligned="false"
or in the code:
layout.setBaselineAligned(false);
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Get all attributes of an element using jQuery
...arguments);
};
})($.fn.attr);
Usage:
var $div = $("<div data-a='1' id='b'>");
$div.attr(); // { "data-a": "1", "id": "b" }
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Check if something is (not) in a list in Python
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@Zack: if you didn't know about this, you could just do if not ELEMENT in COLLECTION:
– ninjagecko
May 2 '12 at 0:23
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How to terminate a python subprocess launched with shell=True
...al to all the process in the groups. For that, you should attach a session id to the parent process of the spawned/child processes, which is a shell in your case. This will make it the group leader of the processes. So now, when a signal is sent to the process group leader, it's transmitted to all o...