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How do I use the conditional operator (? :) in Ruby?
... write it on multiple lines:
(true) ? 1 : 0
Normally Ruby will raise an error if you attempt to split it across multiple lines, but you can use the \ line-continuation symbol at the end of a line and Ruby will be happy:
(true) \
? 1 \
: 0
This is a simple example, but it can be very u...
How can I search for a commit message on GitHub?
...
I get a permission error when searching a private repo I have read / write access to.
– anon58192932
Dec 13 '17 at 19:17
1
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Where does npm install packages?
...and then npm updated with npm itself, you may be getting command not found errors. If so, add the aboveto your PATH: export PATH=$PATH:$(npm bin -g) voila
– jacob
Nov 5 '18 at 11:20
...
Backup/Restore a dockerized PostgreSQL database
... for a bit before figuring it out- as I was receiving the following docker error.
read unix @->/var/run/docker.sock: read: connection reset by peer
This can be caused by the file /var/lib/docker/network/files/local-kv.db .I don't know the accuracy of this statement: but I believe I was seeing...
When is a language considered a scripting language? [closed]
...ion into bytecode of the reference CPython impl. doesn't raise compilation errors regarding "type safety"? Maybe Oded's answer has these...
– n611x007
Jun 29 '12 at 6:34
...
How can I upgrade specific packages using pip and a requirements file?
...trying to upgrade some packages, notably Django itself, and I'm getting an error about source code conflicts:
10 Answers
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Problems with DeploymentItem attribute
...pied the file correctly while MSTest failed to do so. --> I experienced errors while dev was OK. Change to 'Test-> Edit Test Settings -> Local settings -> Deployment' including the file in question fixed this for my MSTest use.
– sonstabo
Jun 22 '11...
How do I scroll to an element using JavaScript?
...value. After I have changed that, I had various (not to comprehend) jquery errors (of course - as mostly - only in IE11. Therfore, I have implemented document.getElementById("divFirst").scrollIntoView(); and then $(window).scrollTop($(window).scrollTop() - 80); what works with all Browsers.
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Ternary Operators in JavaScript Without an “Else”
...) - this looks great but seem to throw "invalid assignment left-hand side" error
– Eugene Tiurin
Sep 30 '15 at 9:51
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Understanding slice notation
...[:-2] and a only contains one element, you get an empty list instead of an error. Sometimes you would prefer the error, so you have to be aware that this may happen.
Relation to slice() object
The slicing operator [] is actually being used in the above code with a slice() object using the : notati...