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Escape single quote character for use in an SQLite query
...
for replace all (') in your string, use
.replace(/\'/g,"''")
example:
sample = "St. Mary's and St. John's";
escapedSample = sample.replace(/\'/g,"''")
sha...
How to move one word left in the vi editor
... see other motions here:
Vim documentation: motion, 4. Word motions
Generally a Vim command consists of:
count action motion
Where:
count is number of times you want it to execute. The default is 1.
action is obviously an action: d for delete, c for change, default is empty, and it means simpl...
Measuring text width to be drawn on Canvas ( Android )
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There's actually three different ways of measuring text.
GetTextBounds:
val paint = Paint()
paint.typeface = ResourcesCompat.getFont(context, R.font.kaushanscript)
paint.textSize = 500f
paint.color = Color.argb(255, 3, 221, 252)
val co...
How do I pipe a subprocess call to a text file?
... write the output to a file you can use the stdout-argument of subprocess.call.
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The thi...
How to catch integer(0)?
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If it's specifically zero length integers, then you want something like
is.integer0 <- function(x)
{
is.integer(x) && length(x) == 0L
}
Check it with:
is.integer0(integer(0)) #TRUE
is.integer0(0L) #FALSE
is.integer0(...
What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
... Internet access. I cannot run Jekyll server without Internet. Is it a small bug?
2 Answers
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Changing font size and direction of axes text in ggplot2
...r ggplots here. You can see a full list of parameters you can modify (basically, all of them) using ?theme.
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Checking if output of a command contains a certain string in a shell script
...ev/null
if [ $? == 0 ]; then
echo "matched"
fi
which is done idiomatically like so:
if ./somecommand | grep -q 'string'; then
echo "matched"
fi
and also:
./somecommand | grep -q 'string' && echo 'matched'
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Case insensitive searching in Oracle
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Since 10gR2, Oracle allows to fine-tune the behaviour of string comparisons by setting the NLS_COMP and NLS_SORT session parameters:
SQL> SET HEADING OFF
SQL> SELECT *
2 FROM NLS_SESSION_PARAMETERS
3 WHERE PARAMETER IN ('NLS_COMP', ...
Binding ConverterParameter
...etType, object parameter, CultureInfo culture)
{
return values.All(v => (v is bool && (bool)v))
? Visibility.Visible
: Visibility.Hidden;
}
public object[] ConvertBack(
object value, Type[] targetTypes, object parameter, CultureInfo cul...