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Best way to add page specific JavaScript in a Rails 3 app?
...like to do is include the per-view Javascript in a content_for :head block and then yield to that block in your application layout. For example
If it's pretty short then:
<% content_for :head do %>
<script type="text/javascript">
$(function() {
$('user_rating_positve').clic...
Why is Java's SimpleDateFormat not thread-safe? [duplicate]
... SimpleDateFormat.
For example parse(..) calls calendar.clear() initially and then calendar.add(..). If another thread invokes parse(..) before the completion of the first invocation, it will clear the calendar, but the other invocation will expect it to be populated with intermediate results of th...
How do I convert a numpy array to (and display) an image?
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You could use PIL to create (and display) an image:
from PIL import Image
import numpy as np
w, h = 512, 512
data = np.zeros((h, w, 3), dtype=np.uint8)
data[0:256, 0:256] = [255, 0, 0] # red patch in upper left
img = Image.fromarray(data, 'RGB')
img.sa...
Devise Secret Key was not set
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I ran bundle update this morning and started getting the same error.
I added it as a line in config/initializers/devise.rb and the error was fixed.
This seems to be the commit which introduced it.
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How can I suppress all output from a command using Bash?
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The following sends standard output to the null device (bit bucket).
scriptname >/dev/null
And if you also want error messages to be sent there, use one of (the first may not work in all shells):
scriptname &>/dev/null
scriptname >...
Fastest way to serialize and deserialize .NET objects
I'm looking for the fastest way to serialize and deserialize .NET objects. Here is what I have so far:
9 Answers
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How to make rpm auto install dependencies
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Create a (local) repository and use yum to have it resolve the dependencies for you.
The CentOS wiki has a nice page providing a how-to on this. CentOS wiki HowTos/CreateLocalRepos.
Summarized and further minimized (not ideal, but quickest):
Creat...
Is Task.Result the same as .GetAwaiter.GetResult()?
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@JayBazuzi: MSTest, xUnit, and NUnit all support async Task unit tests, and have for some time now.
– Stephen Cleary
Jun 24 '13 at 22:18
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Skip download if files exist in wget?
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-nc doesn't prevent the sending of the HTTP request and subsequent downloading of the file. It just doesn't do anything after downloading the file if the file has already been fully retrieved. Is there anyway to prevent making the HTTP request if the file already exists? stack...
Enforcing the type of the indexed members of a Typescript object?
... would like to store a mapping of string -> string in a Typescript object, and enforce that all of the keys map to strings. For example:
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