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Why does casting int to invalid enum value NOT throw exception?
...inspired pattern than a Java-inspired one. This makes it possible to have "Bit Flag" enums which can use binary patterns to determine whether a particular "flag" is active in an enum value. If you had to define every possible combination of flags (i.e. MondayAndTuesday, MondayAndWednesdayAndThursday...
How do you delete an ActiveRecord object?
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edited Feb 5 '19 at 10:29
Qortex
4,71322 gold badges2626 silver badges4747 bronze badges
answered ...
Android: Difference between Parcelable and Serializable?
...process. This method creates a lot of temporary objects and causes quite a bit of garbage collection. However, Serializable interface is easier to implement.
Look at the example below (Serializable):
// MyObjects Serializable class
import java.io.Serializable;
import java.util.ArrayList;
import j...
Which is better in python, del or delattr?
.... del foo.bar compiles to two bytecode instructions:
2 0 LOAD_FAST 0 (foo)
3 DELETE_ATTR 0 (bar)
whereas delattr(foo, "bar") takes five:
2 0 LOAD_GLOBAL 0 (delattr)
3 LOAD_FAST 0 (foo)
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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...ould be pointless. So trying to use WebSockets to query RESTful API - is a bit weird attempt, and can't see any benefit of it at all. If you need data from RESTful API but in real-time manner, then you create WebSockets api to push data that will work with bidirectional communication like WebSockets...
Using an integer as a key in an associative array in JavaScript
..., arrays have integer "keys".
– Lightness Races in Orbit
Nov 17 '12 at 22:53
1
Please note, that ...
How to exit a function in bash
...it.
– Yevgeniy Brikman
May 6 '16 at 10:53
1
@YevgeniyBrikman that's only true if the error in the...
How does origin/HEAD get set?
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Note first that your question shows a bit of misunderstanding. origin/HEAD represents the default branch on the remote, i.e. the HEAD that's in that remote repository you're calling origin. When you switch branches in your repo, you're not affecting that. The sam...
Deadly CORS when http://localhost is the origin
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Chrome does not support localhost for CORS requests (a bug opened in 2010, marked WontFix in 2014).
To get around this you can use a domain like lvh.me (which points at 127.0.0.1 just like localhost) or start chrome with the --disable-web-security flag (assuming you're just testing).
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Schema for a multilanguage database
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answered Nov 27 '08 at 10:02
SunWuKungSunWuKung
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