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Get distance between two points in canvas
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http://en.wikipedia.org/wiki/Euclidean_distance
If you have the coordinates, use the formula to calculate the distance:
var dist = Math.sqrt( Math.pow((x1-x2), 2) + Math.pow((y1-y2), 2) );
If your platform supports the **...
MySQL DROP all tables, ignoring foreign keys
...TABLE `VIEW_NAME` statement to DROP VIEW `VIEW_NAME` manually.
Note, per http://dev.mysql.com/doc/refman/5.5/en/drop-table.html, dropping with cascade is pointless / misleading:
"RESTRICT and CASCADE are permitted to make porting easier. In MySQL 5.5, they do nothing."
Therefore, in order f...
Detecting taps on attributed text in a UITextView in iOS
...this in IOS 6 ? Can you please take a look at this question ?stackoverflow.com/questions/19837522/…
– Steaphann
Nov 8 '13 at 14:28
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How is the java memory pool divided?
...w space called Metaspace, which will be held in native memory.
reference：http://www.programcreek.com/2013/04/jvm-run-time-data-areas/
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follo...
Using Version Control for Home Development?
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Completely.
Credits also to http://blogs.embarcadero.com/nickhodges/2010/04/23/39416:
Sometimes we do stupid mistakes. Having a source control safety net is a must.
Tag important milestones. Even in home development you may want to mark a set of files...
BASH copy all files except one
I would like to copy all files out of a dir except for one named Default.png. It seems that there are a number of ways to do this. What seems the most effective to you?
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Check if event is triggered by a human
...k e.originalEvent: if it's defined the click is human:
Look at the fiddle http://jsfiddle.net/Uf8Wv/
$('.checkbox').change(function(e){
if (e.originalEvent !== undefined)
{
alert ('human');
}
});
my example in the fiddle:
<input type='checkbox' id='try' >try
<button id='click...
Jump to matching XML tags in Vim
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There is a vim plugin called matchit.vim . You can find it here: http://www.vim.org/scripts/script.php?script_id=39 . It was created pretty much the exact purpose you describe.
Install that, place your cursor on the body of the tag (not the <>, else it'll match those) and press % to...
What's the difference between ISO 8601 and RFC 3339 Date Formats?
...etter just reading the document for yourself in the event you're worried:
http://tools.ietf.org/html/rfc3339
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jQuery selector for the label of a checkbox
...e; top: -9999px; left: -9999px;}
.orienlabel{background:#1a97d4 url('http://www.ifreight.solutions/process.html/images/icons/flowChart.png') no-repeat 2px 5px; background-size: 40px auto;color:#fff; width:50px;height:50px;display:inline-block; border-radius:50%;color:transparent;cursor:pointer...