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How efficient can Meteor be while sharing a huge collection among many clients?
....0.1. I'll try to explain why.
As described in the above post and also in https://github.com/meteor/meteor/issues/1821, the meteor server has to keep a copy of the published data for each client in the merge box. This is what allows the Meteor magic to happen, but also results in any large shared d...
How do Trigonometric functions work?
...e reduction. Trig functions are periodic, so you need to reduce arguments down to a standard interval. For starters, you could reduce angles to be between 0 and 360 degrees. But by using a few identities, you realize you could get by with less. If you calculate sines and cosines for angles betwee...
ALTER TABLE without locking the table?
... table. (Could be managed by a trigger. Although this would cause a slow down, it's not a lock...)
Once finished, change the name of the source table, then change the name of the new table. Preferably in a transaction.
Once finished, recompile any stored procedures, etc that use that table. Th...
How to delete history of last 10 commands in shell?
...e every other command. E.g. when command 511 is deleted, everything shifts down so 512 becomes the new 511 and 513 is the new 512. Therefor history -d 511 works as expected, then history -d 512 deletes what used to be 513, and 512 remains in the history as command 511. Hope that makes sense.
...
CentOS 64 bit bad ELF interpreter
...ther instructions to fix this problem you'll find in this IBM's web page:
https://www-304.ibm.com/support/docview.wss?uid=swg21459143
Hope this helps for anybody trying to install that.
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iOS Image Orientation has Strange Behavior
...(transform, -1.0, 1.0);
break;
case UIImageOrientationDown: //EXIF = 3
transform = CGAffineTransformMakeTranslation(imageSize.width, imageSize.height);
transform = CGAffineTransformRotate(transform, M_PI);
break;
case UIImageOrientati...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...ed and false is omitted.
You can run the tests yourself, check this gist:
https://gist.github.com/mfdj/8165967
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Can you autoplay HTML5 videos on the iPad?
... track).
To see a full list of these restrictions, see the official docs: https://webkit.org/blog/6784/new-video-policies-for-ios/
iOS 9 and before
As of iOS 6.1, it is no longer possible to auto-play videos on the iPad.
My assumption as to why they've disabled the auto-play feature?
Well, as...
How to convert a Git shallow clone to a full clone?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Remove Identity from a column in a table
...ce ON 1 = 0
--WHERE t1.InvoiceID = @InvoiceID
For more explanation see:
https://dba.stackexchange.com/a/138345/101038
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