NXSL:index

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Returns the position of the first occurrence of substring in string at or after position if specifed.

Syntax

index(string, substring [,position]);

string	The string which will be examined.
substring	The string which we will search for.
position	[Optional] The starting position in the string to begin our search from the left.

All index values are 1-based (i.e. the first character has index 1, not 0).

Integer value of the position substring was found at, will return 0 if not found.

index("abcdef","cd")  	        ->	3
index("abcdef","cd",4)  	->	0
index("abcdefabcdef","cd",4)	->	9