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How do I trim leading and/or trailing whitespace from a string?

April 26, 2017Leading String trailing trim whitespace

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How do I trim leading and/or trailing whitespace from a string?

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Some languages provide a built-in function to remove leading and/or trailing whitespace from a string (such as PHP’s trim. Perl does not have it because it is fairly trivial to do using the s/// built-in (see our resources about regular expressions and there’s also String-Trim on CPAN.