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How does an underscore in front of a variable in a cocoa objective-c class work?
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From what I understand, Apple recommends against using the underscore prefix on method names (they reserve that for themselves as a convention for private methods), but they don't have any such recommendation about instance v...
Using ECMAScript 6
... very close to the desired result.
If you want to run ES6 syntax directly from the console, then you could try to overwrite the JavaScript evaluator of the console (such that Traceur preprocesor is run before executing the code). If you fancy doing this, have a look at this answer to learn how to m...
Install autoreconf on OS X v10.7 (Lion)?
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By downloading the .pkg file from MacPorts and installing it, it does the trick for me.
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How to create a cron job using Bash automatically without the interactive editor?
...ng the editor (crontab -e). If so, What would be the code create a cronjob from a Bash script?
20 Answers
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The performance impact of using instanceof in Java
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Modern JVM/JIC ..COuld you please mention from which java version these optimiszation have been covered?
– Ravisha
Dec 3 '10 at 9:50
146
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What is a higher kinded type in Scala?
...a that supports anonymous type functions, you could shorten that last line from the examples to:
types (informally) String [x] => x [F[x]] => F[String]) // I repeat, this is not valid Scala, and might never be
(On a personal note, I regret ever having talked about "higher-kind...
Test if characters are in a string
...prints to its output string.
Now, the grep program is basically a filter, from lines of input, to lines of output. And it seems that R's grep function similarly will take an array of inputs. For reasons that are utterly unknown to me (I only started playing with R about an hour ago), it returns a v...
Installing libv8 gem on OS X 10.9+
...ibv8 in your Gemfile (or) a bundle update should suffice. Hope this helps.
From the libv8 README
Bring your own V8
Because libv8 is the interface for the V8 engine used by therubyracer, you may need to use libv8, even if you have V8 installed already. If you wish to use your own V8 installation, rat...
How to inspect the return value of a function in GDB?
..., fun () at test.c:2
2 return 42;
(gdb) finish
Run till exit from #0 fun () at test.c:2
main () at test.c:7
7 return 0;
Value returned is $1 = 42
(gdb)
The finish command can be abbreviated as fin. Do NOT use the f, which is abbreviation of frame command!
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Container-fluid vs .container
...lable width.
The difference between container and container-fluid comes from these lines of CSS:
@media (min-width: 568px) {
.container {
width: 550px;
}
}
@media (min-width: 992px) {
.container {
width: 970px;
}
}
@media (min-width: 1200px) {
.container {
width: 1170px;
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