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Is there a built-in function to trim leading and trailing whitespace such that trim(" hello world ") eq "hello world"?
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Removing unwanted spaces from a string can be used to store only the required data and to remove the unnecessary trailing spaces. This can be done using the trim function in Perl. The trim function uses a regular expression to remove white spaces.
To remove leading and trailing spaces in Java, use the trim() method. This method returns a copy of this string with leading and trailing white space removed, or this string if it has no leading or trailing white space.
strip(): returns a new string after removing any leading and trailing whitespaces including tabs (\t). rstrip(): returns a new string with trailing whitespace removed.
TRIM function - remove extra spaces in Excel You use the TRIM function in Excel removes extra spaces from text. It deletes all leading, trailing and in-between spaces except for a single space character between words.
Here's one approach using a regular expression:
$string =~ s/^\s+|\s+$//g ; # remove both leading and trailing whitespace Perl 6 will include a trim function:
$string .= trim; Source: Wikipedia
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