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How to get the caret column (not pixels) position in a textarea, in characters, from the start?
...return node.selectionStart;
} else if (!document.selection) {
return 0;
}
var c = "\001",
sel = document.selection.createRange(),
dul = sel.duplicate(),
len = 0;
dul.moveToElementText(node);
sel.text = c;
len = dul.text.indexOf(c);
sel.moveStart('character',-1);...
How can I format a decimal to always show 2 decimal places?
...
108
I suppose you're probably using the Decimal() objects from the decimal module? (If you need exa...
How to calculate the SVG Path for an arc (of a circle)
Given a circle centered at (200,200), radius 25, how do I draw an arc from 270 degree to 135 degree and one that goes from 270 to 45 degree?
...
Check for internet connection availability in Swift
...
10 Answers
10
Active
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Function to return only alpha-numeric characters from string?
...restricted to just A-Z.
Try this to remove everything except a-z, A-Z and 0-9:
$result = preg_replace("/[^a-zA-Z0-9]+/", "", $s);
If your definition of alphanumeric includes letters in foreign languages and obsolete scripts then you will need to use the Unicode character classes.
Try this to le...
UIImage: Resize, then Crop
...h;
CGFloat targetHeight = targetSize.height;
CGFloat scaleFactor = 0.0;
CGFloat scaledWidth = targetWidth;
CGFloat scaledHeight = targetHeight;
CGPoint thumbnailPoint = CGPointMake(0.0,0.0);
if (CGSizeEqualToSize(imageSize, targetSize) == NO)
{
CGFloat widthFact...
Selecting a row in DataGridView programmatically
...
130
Not tested, but I think you can do the following:
dataGrid.Rows[index].Selected = true;
or yo...
Shell script to delete directories older than n days
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401
This will do it recursively for you:
find /path/to/base/dir/* -type d -ctime +10 -exec rm -rf ...
Remove characters from NSString?
...
280
You could use:
NSString *stringWithoutSpaces = [myString
stringByReplacingOccurrencesOfStri...
How do I add 24 hours to a unix timestamp in php?
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303
You probably want to add one day rather than 24 hours. Not all days have 24 hours due to (among...