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Get integer value of the current year in Java
...There's no concurrency issue with the code, so there is no need to make it more compilcated. Calendar.getInstance().get(Calendar.YEAR) is atomic in regards to the clock being changed externally, and doing synchronized(c) on a newly instance of a local variable would anyhow be very pointless here.
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Replace transparency in PNG images with white background
...this way: mogrify -flatten *.png just in case, do not forget to do backup. More info here: imagemagick.org/script/mogrify.php
– tro
Jun 22 '17 at 17:28
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Do sealed classes really offer performance Benefits?
...cal goodness but is in fact nonsense. Read the comments on the article for more info. Summary: the 3 reasons given are Versioning, Performance, and Security/Predictability - [see next comment]
– Steven A. Lowe
Oct 14 '08 at 21:52
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Does name length impact performance in Redis?
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The example key you give is for a set, set lookup methods are O(1). The more complex operations on a set (SDIFF, SUNION, SINTER) are O(N). Chances are that populating $userId was a more expensive operation than using a longer key.
Redis comes with a benchmark utility called redis-benchmark, if ...
What in the world are Spring beans?
... container, for example, in the form of
XML <bean/> definitions.
More to learn about beans and scope from SpringSource:
When you create a bean definition what you are actually creating is a
recipe for creating actual instances of the class defined by that bean
definition. The idea ...
How to scroll up or down the page to an anchor using jQuery?
...nimate({scrollTop: aTag.offset().top},'slow');
}
scrollToAnchor('id3');
More Information
jsFiddle Demonstration
jQuery.offset()
jQuery.animate()
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How can I return two values from a function in Python?
...mma, so parens are not mandatory. But you can use parens to make your code more readable or to split the tuple over multiple lines. The same applies to line my_i, my_card = select_choice().
If you want to return more than two values, consider using a named tuple. It will allow the caller of the fun...
Where/How to getIntent().getExtras() in an Android Fragment? [duplicate]
...ta retrieved from the activity, optionally using interfaces if your app is more complex and deals with different fragments in a single container.
– MH.
Jun 13 '13 at 21:30
2
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jQuery: what is the best way to restrict “number”-only input for textboxes? (allow decimal points)
... plugin.
$(document).ready(function(){
$(".numeric").numeric();
});
Moreover this works with textareas also!
However, note that Ctrl+A, Copy+Paste (via context menu) and Drag+Drop will not work as expected.
HTML 5
With wider support for the HTML 5 standard, we can use pattern attribute and...
Prevent users from submitting a form by hitting Enter
... }
});
});
In reading the comments on the original post, to make it more usable and allow people to press Enter if they have completed all the fields:
function validationFunction() {
$('input').each(function() {
...
}
if(good) {
return true;
}
return false;
}
$(document)....