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C++ Object Instantiation
...a = new B();
a->f();
delete a;
return 0;
}
This will print "B". Now lets see what happens when using Stack:
int main(void) {
A a = B();
a.f();
return 0;
}
This will print "A", which might not be intuitive to those who are familiar with Java or other object oriented languages. The...
What is the easiest way to duplicate an activerecord record?
...initely DO NOT use clone. As other posters have mentioned the clone method now delegates to using Kernel#clone which will copy the id. Use ActiveRecord::Base#dup from now on
– bradgonesurfing
Aug 5 '11 at 13:57
...
Is there something like RStudio for Python? [closed]
...hat I can see Rodeo 2.0 uses Electron. It still is a browser tool, only it now comes with its own browser to make it feel like its a native app. (It's also worth mentioning that it comes with a dependency on NodeJS.)
– Phillip
Jan 17 '17 at 10:21
...
What is the “right” JSON date format?
... is also the preferred representations according to ECMA: JSON.stringify({'now': new Date()}) "{"now":"2013-10-21T13:28:06.419Z"}"
– Steven
Oct 21 '13 at 13:28
...
Cannot run Eclipse; JVM terminated. Exit code=13
...
I feel really stupid now, downloading both 64-bit eclipse and jdk but still trying to specify with x86.... At least i'm not alone xD
– AmazingDreams
Nov 3 '12 at 10:16
...
How to set versionName in APK filename using gradle?
... Is there any way to add variant.buildType.name to the name? I know this isn't really default config related, but I'm trying to figure out how to remove the obsolete variantOutput.getAssemble() warning
– Allan W
Mar 5 '19 at 5:51
...
Best way to determine user's locale within browser
...ice in the HTML, and use JavaScript to parse the language header. I don't know of any existing library code to do this, though, since Accept-Language parsing is almost always done on the server side.
Whatever you end up doing, you certainly need a user override because it will always guess wrong fo...
Difference between `set`, `setq`, and `setf` in Common Lisp?
...namic ones. And
there was no SETQ or SETF, just the SET function.
What is now written as:
(setf (symbol-value '*foo*) 42)
was written as:
(set (quote *foo*) 42)
which was eventually abbreviavated to SETQ (SET Quoted):
(setq *foo* 42)
Then lexical variables happened, and SETQ came to be use...
Co-variant array conversion from x to y may cause run-time exception
...and I am not very happy about it, but there’s nothing we can do about it now.
– franssu
Oct 23 '14 at 8:21
...
How to get HTML 5 input type=“date” working in Firefox and/or IE 10
... Glad to hear this. Should be on by default imo. But this is good to know.
– Solomon Closson
Dec 22 '17 at 4:24
I...