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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...
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...
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...
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 improve Netbeans performance?
...es.
How to set:
Edit the file C:\Program Files\NetBeans <version>\etc\netbeans.conf
(check your NetBeans installation folder if you installed it in another location)
Find the line that says
netbeans_default_options="..."
Add the option -J-Xverify:none to the list of options.
Restart Net...
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...
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...
What's the difference between ES6 Map and WeakMap?
...o strings or numbers or Symbols as keys, only arrays, objects, other maps, etc.).
– Ahmed Fasih
Aug 28 '16 at 5:41
1
...
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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