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Bare asterisk in function arguments?
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Bare * is used to force the caller to use named arguments - so you cannot define a function with * as an argument when you have no following keyword arguments.
See this answer or Python 3 documentation for more details.
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How can I do string interpolation in JavaScript?
... @LaughingLemonade Backward compatibility. If it was implemented that way, all the existing code which prints a string in that format will fail.
– thefourtheye
Dec 21 '18 at 7:02
2...
Matching an empty input box using CSS
...e present in the input tag. Tested in Chrome - not sure if this counts for all browsers.
– Berend
Mar 17 '17 at 6:23
10
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Using socket.io in Express 4 and express-generator's /bin/www
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A little different approach to initiate socket.io, it groups all related code in one place:
bin/www
/**
* Socket.io
*/
var socketApi = require('../socketApi');
var io = socketApi.io;
io.attach(server);
socketApi.js
var socket_io = require('socket.io');
var io = socket_io();
var ...
What does OSGi solve?
I've read on Wikipedia and other sites about OSGi , but I don't really see the big picture. It says that it's a component-based platform, and that you can reload modules at runtime. Also the "practical example" given everywhere is the Eclipse Plugin Framework.
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Setting up a deployment / build / CI cycle for PHP projects
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I've been through buildbot, CruiseControl.net, CruiseControl and Hudson. All though I really liked CruiseControl*, it was just too much of a hassle with really complex dependency cases. buildbot is not easy to set up, but it's got a nice aura (I just like python, that's all). But hudson won over t...
mkdir's “-p” option
...p created both, hello and goodbye
This means that the command will create all the directories necessaries to fulfill your request, not returning any error in case that directory exists.
About rlidwka, Google has a very good memory for acronyms :). My search returned this for example: http://www.cs...
MongoDB vs. Cassandra [closed]
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Totally different, a comment isn't big enough, but ... Cassandra is a linearly scalable (amortized constant time reads & writes) dynamo/google bigtable hybrid that features fast writes regardless of data size. It's feature s...
Relationship between hashCode and equals method in Java [duplicate]
...t is: objects which are .equals() MUST have the same .hashCode().
This is all documented in the javadoc for Object. And Joshua Bloch says you must do it in Effective Java. Enough said.
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impr...
How to write trycatch in R
...rn value in case of warning
return(NULL)
},
finally={
# NOTE:
# Here goes everything that should be executed at the end,
# regardless of success or error.
# If you want more than one expression to be executed, then you
# need to wr...