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Exit a Script On Error
...n the script of that command
# exit the script or return to try again, etc.
exit $errorCode # or use some other value or do return instead
}
trap f ERR
# do some stuff
false # returns 1 so it triggers the trap
# maybe do some other stuff
Other traps can be set to handle other signals, inc...
What's the best way to iterate over two or more containers simultaneously
... start over; or some other pattern; or more than two containers at a time; etc ...
However, if you wanted to make your own "for_each" style function that iterates through two containers only up to the length of the shortest one, you could do something like this:
template <typename Container1, t...
background function in Python
... contexts when there are other "greenlets" running. Worries about locking, etc are much reduced, as there is only one thing running at a time, yet the image will continue to download whenever a blocking operation executes in the "main" context.
Depending on how much, and what kind of thing you want...
How do I programmatically shut down an instance of ExpressJS for testing?
... (like reading config options from a file, loading state from a datastore, etc) that it would be nice to test in the same framework I test everything else. I'd also like to have tests that, for instance, shutdown the server, bring it back up again, and make sure it didn't lose state in the process. ...
JavaScript “new Array(n)” and “Array.prototype.map” weirdness
...p calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values....
Why use HttpClient for Synchronous Connection
...g a console app) until I get the HTTP response... So, if Wait(), Result(), etc can cause deadlocks, what's the definite solution for this without the risk of deadlock and without using other classes like WebClient?
– Dexter
Feb 6 '17 at 15:38
...
What is a “static” function in C?
...y of C++ vs Java terms (e.g. C++ uses "data member" and Java uses "field", etc)).
– ShreevatsaR
Jan 27 '15 at 18:49
...
Can I use __init__.py to define global variables?
...ve "global" variables available like version.VERSION, version.PACKAGE_NAME etc.
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Set Additional Data to highcharts series
...9, 2],
[1515059838080, 3],
// you get the idea
]
}]
In order not to lose the benefits of the turbo threshold (which is important when dealing with lots of data points), I store the data outside of the chart and look up the data point in the tooltip formatter function. Here's an e...
Types in MySQL: BigInt(20) vs Int(20)
...the developers - as I would have guessed it was width + max value, or bits/etc.
– Sh4d0wsPlyr
May 25 '15 at 23:51
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