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Filter dict to contain only certain keys?
...I'm only interested in a select few of them. Is there an easy way to prune all the other ones out?
15 Answers
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How do you use the ? : (conditional) operator in JavaScript?
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This is a one-line shorthand for an if-else statement. It's called the conditional operator.1
Here is an example of code that could be shortened with the conditional operator:
var userType;
if (userIsYoungerThan18) {
userType = "Minor";
} else {
userType = "Adult";
}
if (userIsY...
What is “android:allowBackup”?
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For this lint warning, as for all other lint warnings, note that you can get a fuller explanation than just what is in the one line error message; you don't have to search the web for more info.
If you are using lint via Eclipse, either open the lint war...
When are you truly forced to use UUID as part of the design?
I don't really see the point of UUID . I know the probability of a collision is effectively nil , but effectively nil is not even close to impossible.
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Possible to change where Android Virtual Devices are saved?
... \.android" by default. Is there any way to change this behavior? I have all of the other components saved in a directory on a separate partition and would like everything to be consolidated. Obviously not a huge deal but does anyone here know a workaround for this?
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Use Font Awesome Icon in Placeholder
...possible to use Font Awesome Icon in a Placeholder? I read that HTML isn't allowed in a placeholder. Is there a workaround?
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Rails: Default sort order for a rails model?
...ow use Book.published.confirmed.
With this method, the query is not actually executed until actual results are needed (lazy evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query, to avoid performance problems from executing 7 separate queries.
You can u...
Any way to select without causing locking in MySQL?
...ere are locks and opposing to InnoDB those locks are table locks, blocking all requested WRITE locks and all subsequent queries during execution. The original question appears to be about InnoDB though and isolation levels are non-existent for MyISAM too - the docs for the SET TRANSACTION statement ...
Automatic prune with Git fetch or pull
... work is over and I don't know, I won't do a git fetch --prune and eventually I will push back the deleted branch.
3 Answ...
ab load testing
...While ab runs, there will be -c clients hitting the site. This is what actually decides the amount of stress your site will suffer during the benchmark.
-n: Indicates how many requests are going to be made. This just decides the length of the benchmark. A high -n value with a -c value that your ser...