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Cron job every three days
Is it possible to run a cronjob every three days? Or maybe 10 times/month.
11 Answers
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How do Third-Party “tracking cookies” work?
...Advertisers Use Third-Party Cookies?
on how third-party tracking cookies work, but am still very confused.
I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, and then figure out that I was on website A, and ot...
Best practice for embedding arbitrary JSON in the DOM?
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I think your original method is the best. The HTML5 spec even addresses this use:
"When used to include data blocks (as opposed to scripts), the data
must be embedded inline, the format of the data must be given using
the type att...
Why does !{}[true] evaluate to true in JavaScript?
...y containing true, which is true.
On the other hand, applying the ! operator makes the parser interpret {} as an object literal, so the following {}[true] becomes a member access that returns undefined, and !{}[true] is indeed true (as !undefined is true).
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
...application, but now need to filter the output, because it's quite messy - or is my code wrong?
6 Answers
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Zoom in on a point (using scale and translate)
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The better solution is to simply move the position of the viewport based on the change in the zoom. The zoom point is simply the point in the old zoom and the new zoom that you want to remain the same. Which is to say the viewport pre-zoomed and the viewport post-zoomed have the same zoo...
Best design for a changelog / auditing database table? [closed]
I need to create a database table to store different change log/auditing
(when something was added, deleted, modified, etc). I don't need to store particularly detailed info, so I was thinking something along the lines of:
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How to trigger a build only if changes happen on particular set of files
How do I tell Jenkins/Hudson to trigger a build only for changes on a particular project in my Git tree?
8 Answers
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Deleting all pending tasks in celery / rabbitmq
How can I delete all pending tasks without knowing the task_id for each task?
9 Answers
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Using the Swift if let with logical AND operator &&
We know that we can use an if let statement as a shorthand to check for an optional nil then unwrap.
6 Answers
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