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Rails: convert UTC DateTime to another time zone

...e names of the ActiveSupport time zones by doing: ActiveSupport::TimeZone.all.map(&:name) # or for just US ActiveSupport::TimeZone.us_zones.map(&:name) share | improve this answer ...
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Why do some websites add “Slugs” to the end of URLs? [closed]

Many websites, including this one, add what are apparently called slugs - descriptive but as far as I can tell useless bits of text - to the end of URLs. ...
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Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL [duplicate]

...e error in Chrome after pasting code copied from jsfiddle. If you select all the code from a panel in jsfiddle and paste it into the free text editor Notepad++, you should be able to see the problem character as a question mark "?" at the very end of your code. Delete this question mark, then copy...
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Is there a rule-of-thumb for how to divide a dataset into training and validation sets?

...ry variance in your estimates. If you have 100,000 instances, it doesn't really matter whether you choose an 80:20 split or a 90:10 split (indeed you may choose to use less training data if your method is particularly computationally intensive). Assuming you have enough data to do proper held-out t...
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How to tell if a string contains a certain character in JavaScript?

...tion does. There are a lot of people who don't understand regex, and generally the simpler answer is the best. – kemiller2002 Oct 13 '15 at 19:19 ...
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'Specified condition “$(PackageAsSingleFile)” evaluates to “” instead of a boolean?

... solution to this? Restarting works, but I keep getting this error occasionally.. – Pbirkoff Jan 29 '14 at 13:27 4 ...
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Facebook Architecture [closed]

...een scrounging for articles/info about the architecture at Facebook, the challenges & ways they tackle them. What they use & why they use. How do they scale & what are the design decisions for what they do etc. Main underpinning being to learn. Knowing about sites which handles such massive traffic ...
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Call removeView() on the child's parent first

...but its showing error "The specified child already has a parent. You must call removeView() on the child's parent first." how to solve this? – Imranrana07 Apr 10 '19 at 11:22 ...
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Differences between fork and exec

...X in that it provides a very simple way to start new processes. The fork call basically makes a duplicate of the current process, identical in almost every way. Not everything is copied over (for example, resource limits in some implementations) but the idea is to create as close a copy as possible...
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Typical AngularJS workflow and project structure (with Python Flask)

...'s context wasn't preserved when I attempted to serve the index.html statically. I got around this by prepending my static file with app.root_path. Otherwise, this is pretty spot on. – Makoto Sep 28 '13 at 20:32 ...