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RVM is not a function, selecting rubies with 'rvm use …' will not work
... is not running as a login shell and hence have no access to rvm function. If you are running Ubuntu, you can:
Open console
Select Edit -> Profile Preferences
Select tab: Title and Command
Check box 'Run command as a login shell'
Restart terminal
...
Media Queries: How to target desktop, tablet, and mobile?
...ons thereof, be cognizant of the order of your rules, keeping in mind that if multiple rules match the same element, the later rules will override the earlier rules.
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Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
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If the data we wish to model is non-linear then we need to account for that in our model.
– doug
Mar 20 '12 at 10:10
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How to index characters in a Golang string?
...ters. Strings behave like slices of bytes. A rune is an integer value identifying a Unicode code point. Therefore,
package main
import "fmt"
func main() {
fmt.Println(string("Hello"[1])) // ASCII only
fmt.Println(string([]rune("Hello, 世界")[1])) // UTF-8
fmt.Println(st...
How to request a random row in SQL?
...ue LIMIT 1
This works in logarithmic time, regardless of the table size, if num_value is indexed. One caveat: this assumes that num_value is equally distributed in the range 0..MAX(num_value). If your dataset strongly deviates from this assumption, you will get skewed results (some rows will appea...
throw checked Exceptions from mocks with Mockito
...n() that is not valid to be thrown by that particular method call.
To clarify further.
The List interface does not provide for a checked Exception to be thrown from the get(int index) method and that is why Mockito is failing.
When you create the mocked List, Mockito will use the definition of List...
How do I create a constant in Python?
...t declare a variable or value as constant in Python. Just don't change it.
If you are in a class, the equivalent would be:
class Foo(object):
CONST_NAME = "Name"
if not, it is just
CONST_NAME = "Name"
But you might want to have a look at the code snippet Constants in Python by Alex Martelli.
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Python: One Try Multiple Except
...ception:
handle_second_one()
except (ThirdException, FourthException, FifthException) as e:
handle_either_of_3rd_4th_or_5th()
except Exception:
handle_all_other_exceptions()
See: http://docs.python.org/tutorial/errors.html
The "as" keyword is used to assign the error to a variable so ...
Getting a list item by index
...nces to objects. Clearing the list does not affect the objects held in it. If there are no other references to those objects, they will be garbage collected at some point in time.
– Mitch Wheat
Mar 4 at 1:17
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How to make overlay control above all other controls?
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If you are using a Canvas or Grid in your layout, give the control to be put on top a higher ZIndex.
From MSDN:
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" WindowTitle="ZIndex Sample">
&l...