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How to have multiple CSS transitions on an element?
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coreywardcoreyward
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NSString property: copy or retain?
...is declared retain or copy — it will be @"Debajit" if the property is marked retain, but @"Chris" if the property is marked copy.
Since in almost all cases you want to prevent mutating an object's attributes behind its back, you should mark the properties representing them copy. (And if you writ...
What is the difference between a map and a dictionary?
I know a map is a data structure that maps keys to values. Isn't a dictionary the same? What is the difference between a map and a dictionary 1 ?
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Generate a heatmap in MatPlotLib using a scatter data set
I have a set of X,Y data points (about 10k) that are easy to plot as a scatter plot but that I would like to represent as a heatmap.
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How to send an email using PHP?
...ng PHP's mail() function it's possible. Remember mail function will not work on a Local server.
<?php
$to = 'nobody@example.com';
$subject = 'the subject';
$message = 'hello';
$headers = 'From: webmaster@example.com' . "\r\n" .
'Reply-To: webmaster@example.com' . "\r\n" .
'X-Mailer:...
Meaning of numbers in “col-md-4”,“ col-xs-1”, “col-lg-2” in Bootstrap
...n a .row, which has -15px margins. This avoids duplicating the padding and keeps the content lined up between nested and non-nested col classes.
-- You didn't specifically ask about the xs, sm, md, lg usage, but they go hand-in-hand so I can't help but touch on it...
In short, they are used to de...
How does a ArrayList's contains() method evaluate objects?
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ArrayList implements the List Interface.
If you look at the Javadoc for List at the contains method you will see that it uses the equals() method to evaluate if two objects are the same.
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How to change text transparency in HTML/CSS?
I'm very new to HTML/CSS and I'm trying to display some text as like 50% transparent. So far I have the HTML to display the text with full opacity
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jQuery Ajax File Upload
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You can upload file, without refreshing page by using IFrame.
You can check further details here.
UPDATE
With XHR2, File upload through AJAX is supported. E.g. through FormData object, but unfortunately it is not supported by all/old browsers.
FormData support starts from following desktop bro...
Matlab: Running an m-file from command-line
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A command like this runs the m-file successfully:
"C:\<a long path here>\matlab.exe" -nodisplay -nosplash -nodesktop -r "run('C:\<a long path here>\mfile.m'); exit;"
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