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Storing sex (gender) in database
...s a more narrow number of values. Using CHAR(1) would make using "m", "f",etc natural keys, vs the use of numeric data which are referred to as surrogate/artificial keys. CHAR(1) is also supported on any database, should there be a need to port.
Conclusion
I would use Option 2: CHAR(1).
Addendu...
How to check whether dynamically attached event listener exists or not?
...ts = {};
EventTarget.prototype.addEventListener = function(name, listener, etc) {
var events = EventTarget.prototype.events;
if (events[name] == null) {
events[name] = [];
}
if (events[name].indexOf(listener) == -1) {
events[name].push(listener);
}
_addEventListener(name, liste...
Rails: confused about syntax for passing locals to partials
...ike you said. You can also do in-code search and it has built in terminal, etc. Caution - its a pretty big file
– sethvargo
Dec 9 '10 at 20:22
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How to serialize a TimeSpan to XML
... approach you've posted; it is (for example) efficient (no complex parsing etc), culture independent, unambiguous, and timestamp-type numbers are easily and commonly understood.
As an aside, I often add:
[Browsable(false), EditorBrowsable(EditorBrowsableState.Never)]
This just hides it in the UI...
Can gcc output C code after preprocessing?
...s I've tried do this- they concatenate lines, choke on special characters, etc.) Asuming you have gcc installed, the command line is:
gcc -E -x c -P -C -traditional-cpp code_before.cpp > code_after.cpp
(Doesn't have to be 'cpp'.) There's an excellent description of this usage at http://www.c...
Is it possible to set the equivalent of a src attribute of an img tag in CSS?
... do not allow authors to specify distinct style (colors, fonts, alignment, etc.) for the list marker or adjust its position
This method is also not suitable for the <img> tag as the conversion cannot be made between element types, and here's the limited, non compliant hack that doesn't work...
What happens to a detached thread when main() exits?
...ishes destroying static objects, running atexit handlers, flushing streams etc. it returns control to the host environment, i.e. the process exits. If a detached thread is still running (and has somehow avoided undefined behaviour by not touching anything outside its own thread) then it just disappe...
Python Pandas merge only certain columns
...aFrame df1 with columns x, y, z, and df2 with columns x, a ,b, c, d, e, f, etc.
5 Answers
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iphone Core Data Unresolved error while saving
...entity the error occurred on, the relationship/attribute that was missing, etc). The keys you use to inspect the userInfo dictionary can be found in the reference docs here.
This is the block of code I use to get reasonable output from the error returned during a save:
NSError* error;
if(...
Download file from an ASP.NET Web API method using AngularJS
... using var saveBlob = navigator.msSaveBlob || navigator.webkitSaveBlob ... etc. to determine the available saveBlob support caused an exception; hence why the code below now tests for navigator.msSaveBlob separately. Thanks? Microsoft
// Based on an implementation here: web.student.tuwien.ac.at/~e0...