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Functions by Category Functions by Alphabetical list
The index function searches for one string within another, but without the wildcard-like behavior of a full regular-expression pattern match. It returns the position of the first occurrence of SUBSTR in STR at or after POSITION. If POSITION is omitted, starts searching from the beginning of the string. The return value is based at 0. If the substring is not found, returns one less than the base, ordinarily -1. Examples: index('one two three','two'); #returns 4
index('one two three','four'); #returns -1
Related functions: length , substr
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