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Why is it important to override GetHashCode when Equals method is overridden?
...ce this is used (in the absence of a custom IEqualityComparer<T>) to group items into buckets. If the hash-code for two items does not match, they may never be considered equal (Equals will simply never be called).
The GetHashCode() method should reflect the Equals logic; the rules are:
if ...
How to force vim to syntax-highlight a file as html?
...
E216: No such group or event: BufLoad *.ezt set syntax=html ... what am i doing wrong?
– Karthick
Oct 10 '10 at 9:38
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How to define two angular apps / modules in one page?
... -- http://docs.angularjs.org/api/ng.directive:ngApp
See also
https://groups.google.com/d/msg/angular/lhbrIG5aBX4/4hYnzq2eGZwJ
http://docs.angularjs.org/api/angular.bootstrap
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improve t...
Android adding simple animations while setvisibility(view.Gone)
...isibility(show ? View.VISIBLE : View.GONE);
}
Where parent is parent ViewGroup of animated view. Result:
Here is result with Slide transition:
import androidx.transition.Slide;
Transition transition = new Slide(Gravity.BOTTOM);
It is easy to write custom transition if you need something d...
How can I get a JavaScript stack trace when I throw an exception?
...if (Console.settings.stackTrace.collapsed)
console.groupCollapsed(sTitle, sCss);
else
console.group(sTitle, sCss);
console.debug("%c" + sLines, "color: #666666; font-style: italic;");
consol...
How do you build a Singleton in Dart?
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I also recommend reading this thread on the mailing list. groups.google.com/a/dartlang.org/d/msg/misc/9dFnchCT4kA/…
– Greg Lowe
May 21 '17 at 20:44
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Pandas aggregate count distinct
...13-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": pd.Series.nunique})
duration user_id
date
2013-04-01 65 2
2013-04-02 45 1
>>> df.groupby("date").a...
VIM Disable Automatic Newline At End Of File
...ld go into your .vimrc file:
autocmd! "Remove all autocmds (for current group), see below"
autocmd BufWritePost *.php !your-script <afile>
Be sure to read the whole vim documentation about autocommands if this is your first time dealing with autocommands. There are some caveats, e.g. it's...
Python in Xcode 4+?
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If you do not have administrative privileges or are not in the Developer group, you can still use Xcode for Python programming (but you still won't be able to develop in languages that require compiling). Instead of using the play button, in the menu bar, click "Product" → "Perform Action" → "...
What is the difference between gravity and layout_gravity in Android?
.... Every time, I think "layout_gravity" means "the gravity for how this ViewGroup lays out it's contents", and "gravity" is "where this View gravitates to".
– Ogre
Aug 9 '13 at 5:29
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