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levDistance

Owned by Former user (Deleted)
Last updated: Oct 09, 2015 by Chris Welford
1 min read

Function: levDistance()

Returns the Levenshtein distance between two strings. This is the number of character edits (inserts, deletions or substitutions) that would need to be made to change one string into the other. This function is useful in fuzzy string matching.

Syntax

levDistance(string1, string2)

ArgumentTypeDescription
string1StringString, of any length. Note that "null" is treated as an empty string.
string2StringString, of any length. Note that "null" is treated as an empty string.

Examples

levDistance("ABC", "ABC")

returns 0

levDistance("ABC", "AXC")

returns 1

levDistance("ABC", "ABCDE")

returns 2

levDistance("", "ABCDE")

returns 5

levDistance(_NULL, "ABCDE")

returns 5

See Also

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