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Array.push() if does not exist?

... why this isn't native to the language - forget how it's implemented - the idea of 'adding only if unique' is so fundamental as to be assumed to exist. – justSteve Jun 25 '11 at 15:07 ...
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How do I check (at runtime) if one class is a subclass of another?

...an instance, or issubclass if you have a class. Normally thought its a bad idea. Normally in Python you work out if an object is capable of something by attempting to do that thing to it. share | im...
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How to disable CSS in Browser for testing purposes

... Expanding on scrappedocola/renergy's idea, you can turn the JavaScript into a bookmarklet that executes against the javascript: uri so the code can be re-used easily across multiple pages without having to open up the dev tools or keep anything on your clipboard...
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Installing python module within code

... Any idea how to do that on Python 3? imp.reload(site) gets me RuntimeError: dictionary changed size during iteration – kgadek Aug 3 '15 at 16:35 ...
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DropDownList in MVC 4 with Razor

... thanks, I still have no idea where he got that from though – Andre Feb 6 '18 at 17:59 add a comment  |  ...
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Running a Python script from PHP

... Cool idea, but could definitely make your system vulnerable. I agree with @JasonRDalton – Reed Feb 26 at 21:09 ...
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What's the best practice using a settings file in Python? [closed]

... This is a pretty bad idea as if you want to allow low-privileged users to be able to change configuration files only, this way you're essentially allowing them to sneak in privileged code. – nikolay Jun 27 '...
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Is it possible to append to innerHTML without destroying descendants' event listeners?

... @JordonBedwell, I honestly have no idea why I said what I did before. You're 100% right. I feel like at the time I briefly looked into it and couldn't find it, but... Honestly I have no excuse. Esailija even links to that page. – Tynach ...
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Link to the issue number on GitHub within a commit message

... Fix issue #xxx doesn't work for me, any ideas? It references the issue, but doesn't close it. – Dennis May 7 '12 at 4:55 16 ...
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How to change Rails 3 server default port in develoment?

... One more idea for you. Create a rake task that calls rails server with the -p. task "start" => :environment do system 'rails server -p 3001' end then call rake start instead of rails server ...