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What's an elegant way to conditionally add a class to an HTML element in a view?
...ass_names({ foo: true, bar: false })
# => "foo"
class_names(nil, false, 123, "", "foo", { bar: true })
# => "123 foo bar"
Sources:
Link to the corresponding PR.
Link to the class_names docs.
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.htaccess rewrite to redirect root URL to subdirectory
... Just recently I spent a lot of time debugging why this didn't work on a site in Ubuntu Apache 2.4.7. Rewrite debugging showed the rule being hit and generating an INTERNAL REDIRECT. Then it seemed to just park that and look for an index page. Turns out that if mod_dir is enabled AND there is an i...
What do I need to read to understand how git works? [closed]
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The Thing About Git is both fun and informative reading.
– Emil Lundberg
Jan 17 '12 at 20:28
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How to remove files and directories quickly via terminal (bash shell) [closed]
...y...give someone a Sawzall, and suddenly every problem looks like hours of fun!
– Jim Lewis
Apr 15 '10 at 2:23
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How to get the previous URL in JavaScript?
....referrer
in many cases will get you the URL of the last page the user visited, if they got to the current page by clicking a link (versus typing directly into the address bar, or I believe in some cases, by submitting a form?). Specified by DOM Level 2. More here.
window.history allows navigatio...
How to get the last date of a particular month with JodaTime?
...elpful, even if slightly cluttered, so +1 ;)
– jumps4fun
Oct 18 '18 at 8:40
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Favicons - Best practices
...ifest and Safari OS X El Capitan.
Full disclosure: I'm the author of this site.
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Visual Studio 2010 isn't building before a run when there are code changes
...been confused as to why my laptop (dual core 2ghz, 2Gb ram) compiled my website quicker than my desktop (quad core 3ghz with 16Gb ram). Both have SSD disks. Build options all set correctly (the same, core count = parallel builds) yet the laptop runs the site in a few seconds and the dekstop runs the...
Cached, PHP generated Thumbnails load slowly
...on Part A ▉ (100 bountys, awarded)
Main question was how to make this site, load faster. First we needed to read these waterfalls. Thanks all for your suggestions on the waterfall readout analysis. Evident from the various waterfall graphs shown here is the main bottleneck: the PHP-generated th...
How to detect Adblock on my website?
...e to detect if the user is using adblocking software when they visit my website. If they are using it, I want to display a message asking them to turn it off in order to support the project, like this website does.
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