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What's an elegant way to conditionally add a class to an HTML element in a view?
...lass_string(ok: @success) do %>
<% end %>
<% link_to "Hello", root_path, class: class_string(ok: @success) do %>
<% end %>
Either/Or Classes
For use cases where a ternary would be necessary (e.g. @success ? 'good' : 'bad'), pass an array where the first element is the class ...
Is the creation of Java class files deterministic?
...
@GaborSch The root problem is that we want to implement an efficient "online update" of our application for which users would only fetch modified JARs from the website. I can create identical JARs having identical class files as input. But...
How to get the source directory of a Bash script from within the script itself?
...$0")"
readlink will resolve the script path to an absolute path from the root of the filesystem. So, any paths containing single or double dots, tildes and/or symbolic links will be resolved to a full path.
Here's a script demonstrating each of these, whatdir.sh:
#!/bin/bash
echo "pwd: `pwd`"
ec...
What is a Java ClassLoader?
... there is more than one class loader, they are represented in a tree whose root is the bootstrap class loader. Each class loader has a reference to its parent class loader. When a class loader is asked to load a class, it consults its parent class loader before attempting to load the item itself. Th...
When to use static classes in C# [duplicate]
...r static or non-static, but when you are in doubt just go back to your OOP roots and try to think about what you are representing. Is this an object that is performing an action (a car that can speed up, slow down, turn) or something more abstract (like displaying output).
Get in touch with your i...
Golang production web application configuration
...are many reason for doing the latter: not having to run your Go program as root, serving other websites/services on the same host, SSL termination, load balancing, logging, etc.
I use HAProxy in front. Any reverse proxy could work. Nginx is also a great option (much more popular than HAProxy and ca...
Using TortoiseSVN how do I merge changes from the trunk to a branch and vice versa?
...e trunk into a branch / tag
Checkout the branch / tag
Right-click on the root of the branch | Tortoise SVN | Merge ...
Merge Type: Merge a range of revisions | Click 'Next'
Merge revision range: Select the URL of the trunk directory that you copied to the branch / tag. Enter the revisions to merg...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
...he image with an argument will run the argument:
docker run -it test bash
root@e8bb7249b843:/#
See this article from Brian DeHamer for even more details:
https://www.ctl.io/developers/blog/post/dockerfile-entrypoint-vs-cmd/
...
Differences between Octave and MATLAB? [closed]
...aint.
Octave always shows its open-source, information-wants-to-be-free roots. It's free, and it will remind you that it's free at every opportunity. It's developed by volunteers who hate Windows with a passion. Therefore Octave runs on Windows grudgingly. It's quite surprising that as many M...
What's the best online payment processing solution? [closed]
...itting on some work right now to do an HSBC integration. I'd rather have a root canal. Some of the systems make big assumptions about the way you have to work with them, and are poorly designed or inflexible. Retro-fitting them to an active site can be very painful. Some of them are beautiful and ea...