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Is it OK to leave a channel open?
...confuse this
with the close operation for open files. It is important to call the
Close method on every file when you've finished with it.)
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What does @synchronized() do as a singleton method in objective C?
...ed effectively determines what sections of code (or "blocks" as the answer calls them) are protected from concurrent access.
– Arda
Mar 20 '17 at 17:20
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Migrating from JSF 1.2 to JSF 2.0
...n.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="YourWebappID"
version="2.5">
Note: when you're using Servlet 3.0 or newer, use the http://xmlns.jcp.org namespace domain instead of http://java.sun.com throughout the above XML snippet.
JSP 2.x to JSP 2.x
If...
How to convert a string or integer to binary in Ruby?
...igits 0-9, it's likely faster to build a lookup table so you don't have to call the conversion functions every time.
lookup_table = Hash.new
(0..9).each {|x|
lookup_table[x] = x.to_s(2)
lookup_table[x.to_s] = x.to_s(2)
}
lookup_table[5]
=> "101"
lookup_table["8"]
=> "1000"
Indexing ...
How do I iterate through table rows and cells in JavaScript?
...
If you want to go through each row(<tr>), knowing/identifying the row(<tr>), and iterate through each column(<td>) of each row(<tr>), then this is the way to go.
var table = document.getElementById("mytab1");
for (var i = 0, row; row = table.rows[i]; i++) ...
How to remove constraints from my MySQL table?
...I got to solve with this code:
ALTER TABLE `table_name` DROP FOREIGN KEY `id_name_fk`;
ALTER TABLE `table_name` DROP INDEX `id_name_fk`;
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.net implementation of bcrypt
...than BCrypt.dll or it will conflict with the new Windows API in Vista that calls functions in a 'bcrypt.dll', so if you have Bcrypt.net as Bcrypt.dll in your web app bin/ directory Windows won't be able to find the correct dll and you will get some cryptic errors.
– thelsdj
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jQuery get textarea text
...u want to convert key strokes to text? Add a button that sends the text inside the textarea to the server when clicked. You can get the text using the value attribute as the poster before has pointed out, or using jQuery's API:
$('input#mybutton').click(function() {
var text = $('textarea#mytex...
vs in Generics
...The second line above would fail if this wasn't covariant, even though logically it should work, since string derives from object. Before variance in generic interfaces was added to C# and VB.NET (in .NET 4 with VS 2010), this was a compile time error.
After .NET 4, IEnumerable<T> was marked...
How can I select and upload multiple files with HTML and PHP, using HTTP POST?
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does it pass w3c validation, or should it be multiple="multiple"?
– vol7ron
Jun 4 '12 at 18:59
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