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What is so bad about singletons? [closed]
...ingle instance,
you need a singleton.
There aren't many examples. A log file is the big one. You don't want to just abandon a single log file. You want to flush, sync and close it properly. This is an example of a single shared resource that has to be managed.
It's rare that you need a singleton...
Easiest way to copy a table from one database to another?
...
The copied table did not have primary key and auto increment set. You have to run this after ALTER TABLE db1.table1 ADD PRIMARY KEY (id); ALTER TABLE db1.table1 MODIFY COLUMN id INT AUTO_INCREMENT;
– Weston Ganger
...
Detect URLs in text with JavaScript
...r example ::::: is a valid URL.
The path is ":::::". A pretty
stupid filename, but a valid filename.
Also, ///// is a valid URL. The
netloc ("hostname") is "". The path
is "///". Again, stupid. Also
valid. This URL normalizes to "///"
which is the equivalent.
Something l...
Changing website favicon dynamically
...nyway, you can remove shortcut from the rel attribute. shortcut is an invalid IE-proprietary link relation!
– Mathias Bynens
Jun 7 '10 at 12:45
8
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Using the field of an object as a generic Dictionary key
...e objects as the keys for a Dictionary , what methods will I need to override to make them compare in a specific way?
5 An...
How to trigger the window resize event in JavaScript?
... want to know how I can trigger the event to be called. For example, when hide a div, I want my trigger function to be called.
...
How to chain scope queries with OR instead of AND?
...("name = ? OR lastname = ?", 'John', 'Smith')
– CambridgeMike
Nov 9 '11 at 3:55
6
This is still a...
Check if event is triggered by a human
...n check e.originalEvent: if it's defined the click is human:
Look at the fiddle http://jsfiddle.net/Uf8Wv/
$('.checkbox').change(function(e){
if (e.originalEvent !== undefined)
{
alert ('human');
}
});
my example in the fiddle:
<input type='checkbox' id='try' >try
<button id=...
iPhone : How to detect the end of slider drag?
How to detect the event when the user has ended the drag of a slider pointer?
16 Answers
...
vertical align middle in
... the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
...