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Check for internet connection availability in Swift
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10 Answers
10
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Looping over a list in Python
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200
Try this,
x in mylist is better and more readable than x in mylist[:] and your len(x) should b...
How to get the date from jQuery UI datepicker
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CoolEshCoolEsh
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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 use a file in a command and redirect output to the same file without truncating it?
...can use a temporary file though.
#!/bin/sh
tmpfile=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile}
like that, consider using mktemp to create the tmpfile but note that it's not POSIX.
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Easy way to list node modules I have npm linked?
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edited Jul 24 '14 at 15:06
answered Jul 24 '14 at 14:13
m...
How can I format a decimal to always show 2 decimal places?
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108
I suppose you're probably using the Decimal() objects from the decimal module? (If you need exa...
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...
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...
Selecting a row in DataGridView programmatically
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130
Not tested, but I think you can do the following:
dataGrid.Rows[index].Selected = true;
or yo...