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Retrieve filename from file descriptor in C
...Linux can track renames in some cases). To verify, stat the filename given and fstat the fd you have, and make sure st_dev and st_ino are the same.
Of course, not all file descriptors refer to files, and for those you'll see some odd text strings, such as pipe:[1538488]. Since all of the real filen...
Accessing private member variables from prototype-defined functions
...efined on a prototype are not defined within the scope of the constructor, and will not have access to the constructor's local variables.
You can still have private variables, but if you want methods defined on the prototype to have access to them, you should define getters and setters on the this ...
Can I restore a single table from a full mysql mysqldump file?
...extract only the table you want.
Let say the name of your table is mytable and the file mysql.dump is the file containing your huge dump:
$ sed -n -e '/CREATE TABLE.*`mytable`/,/Table structure for table/p' mysql.dump > mytable.dump
This will copy in the file mytable.dump what is located between...
Decode HTML entities in Python string?
...e('£682m'))
FYI html.parser.HTMLParser.unescape is deprecated, and was supposed to be removed in 3.5, although it was left in by mistake. It will be removed from the language soon.
Python 2.6-3.3
You can use HTMLParser.unescape() from the standard library:
For Python 2.6-2.7 it's i...
Javascript what is property in hasOwnProperty?
...code rather than global or function code). I tried it in a blank HTML page and get a "cannot convert null to object" error.
– James Allardice
Feb 22 '12 at 14:39
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Creating JS object with Object.create(null)?
...= Object.prototype while Object.create(null) doesn't inherit from anything and thus has no properties at all.
In other words: A javascript object inherits from Object by default, unless you explicitly create it with null as its prototype, like: Object.create(null).
{} would instead be equivalent t...
Hidden Features of VB.NET?
I have learned quite a bit browsing through Hidden Features
of C# and was surprised when I couldn't find something
similar for VB.NET.
...
What is the difference between \r and \n?
How are \r and \n different? I think it has something to do with Unix vs. Windows vs. Mac, but I'm not sure exactly how they're different, and which to search for/match in regexes.
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
...
not until CSS selectors level 4 is accepted and implemented by browsers, where you will have access to :nth-match(selector) and :nth-last-match(selector). See w3.org/TR/selectors4 for more detail.
– Chris
Feb 9 '15 at 22:55
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Strip Leading and Trailing Spaces From Java String
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what all does it replace? Spaces and newlines maybe ?
– Someone Somewhere
Sep 9 '14 at 22:19
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