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Is there any overhead to declaring a variable within a loop? (C++)
... @Mehrdad Afshari a variable in a loop gets its constructor called once per iteration. EDIT - I see you mentioned this below, but I think it deserves mention in the accepted answer as well.
– hoodaticus
Jul 26 '17 at 20:07
...
socket.error: [Errno 48] Address already in use
...ave to resort to tougher methods like sending a SIGKILL (kill -s KILL <pid> or kill -9 <pid>) signal instead. See Wikipedia for more details.
Alternatively, run the server on a different port, by specifying the alternative port on the command line:
$ python -m SimpleHTTPServer 8910
Ser...
How do I inject a controller into another controller in AngularJS
...hanged and it is not valid i do not want wizard to enable next button so i call container's disable method i.e
if(notIsValid(val)){
this.container.disableNext();
}
}
},
...,
require : {
container: '^^wizardContainer' //Require a wizard component's controller which exis...
How to generate a random string of a fixed length in Go?
...er
Previous solutions get a random number to designate a random letter by calling rand.Intn() which delegates to Rand.Intn() which delegates to Rand.Int31n().
This is much slower compared to rand.Int63() which produces a random number with 63 random bits.
So we could simply call rand.Int63() and ...
How to access component methods from “outside” in ReactJS?
...eRef per latest React docs.
Update 2016-09-19: Changed example to use ref callback per guidance from the ref String attribute docs.
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Best practices for catching and re-throwing .NET exceptions
...g that bombs here
} catch (Exception ex)
{
throw;
}
throw ex; is basically like throwing an exception from that point, so the stack trace would only go to where you are issuing the throw ex; statement.
Mike is also correct, assuming the exception allows you to pass an exception (which is reco...
What is the purpose of .PHONY in a Makefile?
...be up-to-date with regards to its dependencies.
These special targets are called phony and you can explicitly tell Make they're not associated with files, e.g.:
.PHONY: clean
clean:
rm -rf *.o
Now make clean will run as expected even if you do have a file named clean.
In terms of Make, a phon...
force client disconnect from server with socket.io and nodejs
...
Edit: This is now possible
You can now simply call socket.disconnect() on the server side.
My original answer:
This is not possible yet.
If you need it as well, vote/comment on this issue.
sha...
Is there a way to make text unselectable on an HTML page? [duplicate]
... to be unselectable. You can set this using an attribute in HTML:
<div id="foo" unselectable="on" class="unselectable">...</div>
Sadly this property isn't inherited, meaning you have to put an attribute in the start tag of every element inside the <div>. If this is a problem, yo...
Wolfram's Rule 34 in XKCD [closed]
The hover "joke" in #505 xkcd touts "I call rule 34 on Wolfram's Rule 34".
12 Answers
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