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How can I calculate an md5 checksum of a directory?
...le gets renamed. So this doesn't truly fit a "checksum which will uniquely identify the directory as a whole" if you consider file layout part of the signature.
– Valentin Milea
Jan 27 '12 at 13:46
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Format decimal for percentage values?
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If you have a good reason to set aside culture-dependent formatting and get explicit control over whether or not there's a space between the value and the "%", and whether the "%" is leading or trailing, you can use NumberFormatInfo's PercentPositivePattern an...
How to set limits for axes in ggplot2 R plots?
...sian(xlim = c(-5000, 5000))
Where the first removes all data points outside the given range and the second only adjusts the visible area. In most cases you would not see the difference, but if you fit anything to the data it would probably change the fitted values.
You can also use the shorthand...
initializing a Guava ImmutableMap
...V pairs, 10 arguments total. This is by design; the ImmutableMap class provides six different of() methods, accepting between zero and five key-value pairings. There is not an of(...) overload accepting a varags parameter because K and V can be different types.
You want an ImmutableMap.Builder:
Im...
How to merge two files line by line in Bash
... paste will separate each column with a tab unless you override with the -d option, so you can use something like awk, sed, etc... to format each line. Example: paste file1.txt file2.txt | awk '{printf "%-61s | %s\n", $1,$2}' ... this mimics the diff --side-by-side output)
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jQuery Set Select Index
...M element, not a jQuery one. Keep in mind the .eq function can be used outside of the selector as well if you prefer.
$('#selectBox option').eq(3).prop('selected', true);
You can also be more terse/readable if you want to use the value, instead of relying on selecting a specific index:
$("#sel...
Delete/Reset all entries in Core Data?
... delete the SQLite file - but I choose to do it by purging the tables individually with a functions:
- (void) deleteAllObjects: (NSString *) entityDescription {
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:en...
how to append a list object to another
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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Check if a string contains a substring in SQL Server 2005, using a stored procedure
...ring = 'CATCH ME IF YOU CAN' . I want to check whether the word ME is inside @mainString .
2 Answers
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Java Enum Methods - return opposite direction enum
...enum Direction {
NORTH, EAST, SOUTH, WEST;
// cached values to avoid recreating such array each time method is called
private static final Direction[] VALUES = values();
public Direction getOppositeDirection() {
return VALUES[(ordinal() + 2) % 4];
}
}
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