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Is there a way to recover from an accidental “svn revert”?
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That's not true, its a little bit more complicated than a simple NO. Use a recovery tool or if your lucky the files are in the recycle bin.
– RaphMclee
Jul 23 '14 at 11:43
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What is an intuitive explanation of the Expectation Maximization technique? [closed]
...data point.
Calculate weights for each data point indicating whether it is more red or more blue based on the likelihood of it being produced by a parameter. Combine the weights with the data (expectation).
Compute a better estimate for the parameters using the weight-adjusted data (maximisation).
R...
Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...F-8 in MySQL, you have to use its "utf8mb4" encoding. But people are much more likely to not know that and go with "utf8", and much more likely to want UTF-8 than any other encoding, so, presto, they wind up with a maximum indexable length of 255 characters in a VARCHAR. Your astoundment notwithst...
In Vim is there a way to delete without putting text in the register?
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How to auto-reload files in Node.js?
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WHERE vs HAVING
...ain any aggregates, putting it into the WHERE clause will most probably be more efficient.
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When should I use uuid.uuid1() vs. uuid.uuid4() in python?
...to make it unique across computers.
You can create duplicates by creating more than 214 uuid1 in less than 100ns, but this is not a problem for most use cases.
uuid4() generates, as you said, a random UUID. The chance of a collision is really, really, really small. Small enough, that you shouldn't...
Passing parameters to addTarget:action:forControlEvents
...ust check (objectClass *)[button.layer valueForKey:@"anyKey"]; It's like a more free version of .tag
– Albert Renshaw
Oct 14 '16 at 20:40
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How can I add a key/value pair to a JavaScript object?
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How to concatenate two MP4 files using FFmpeg?
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Helpful answer. And it made even more sense to me when I read this variation: superuser.com/a/607384/74576
– Ryan
Feb 22 '16 at 18:54
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