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Select all elements with “data-” attribute without using jQuery
...e a certain data- attribute (let's say data-foo ). The elements may be different tag elements.
7 Answers
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Why does Math.floor return a double?
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According to the same Javadoc:
If the argument is NaN or an infinity or positive zero or negative zero, then the result is the same as the argument. Can't do that with an int.
The largest double value is also larger than the largest int, so it would have ...
Remove all child elements of a DOM node in JavaScript
...s is updated to use lastChild as in computer-science, in general, it's significantly faster to remove the last element of a collection than it is to remove the first element (depending on how the collection is implemented).
The loop continues to check for firstChild just in case it's faster to check...
What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
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Is asynchronous jdbc call possible?
I wonder if there is a way to make asynchronous calls to a database?
16 Answers
16
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Limit number of characters allowed in form input text field
...of characters that will be accepted as input. This can be greater that specified by SIZE , in which case the field
will scroll appropriately. The default is unlimited.
<input type="text" maxlength="2" id="sessionNo" name="sessionNum" onkeypress="return isNumberKey(event)" />
However, thi...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
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Koenig Lookup, or Argument Dependent Lookup, describes how unqualified names are looked up by the compiler in C++.
The C++11 standard § 3.4.2/1 states:
When the postfix-expression in a function call (5.2.2) is an unqualified-id, other namespaces not considered during the usual unqual...
Installing multiple instances of the same windows service on a server
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REM Uninstall
InstallUtil.exe -u YourService.exe
pause
EDIT:
Note sure if I missed something, here is the ServiceInstaller Class (adjust as required):
using System.Configuration;
namespace Made4Print
{
partial class ServiceInstaller
{
/// <summary>
/// Required de...
recursion versus iteration
...t to say that everywhere recursion is used a for loop could be used? And if recursion is usually slower what is the technical reason for ever using it over for loop iteration?
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Remove all subviews?
... situation is muddled up by the fact that NSView and UIView handle things differently. For NSView (desktop Mac development only), you can simply use the following:
[someNSView setSubviews:[NSArray array]];
For UIView (iOS development only), you can safely use makeObjectsPerformSelector: because t...