9.0

182
Index Start searching for S2$ at this index in S1$. If this is omitted then start searching
from the beginning of S1$.
S1$ Search for S2$ in this string value. If this value is Null then Null is returned.
S2$ Search S1$ for this string value. If this value is Null then Null is returned.
See Also: InStrRev( ), Left$( ), Len( ), Mid$( ), Replace$( ), Right$( ).
Example
Sub Main
Debug
.Print InStr("Hello","l") ' 3
End
Sub
InStr Function
Syntax
InStr([Index, ]S1$, S2$)
Group
String
Description
Return the index where S2$ first matches S1$. If no match is found return 0.
Note: A similar function, InStrB, returns the byte index instead.
Parameter Description
Index Start searching for S2$ at this index in S1$. If this is omitted then start searching
from the beginning of S1$.
S1$ Search for S2$ in this string value. If this value is Null then Null is returned.
S2$ Search S1$ for this string value. If this value is Null then Null is returned.
See Also: InStrRev( ), Left$( ), Len( ), Mid$( ), Replace$( ), Right$( ).
Example
Sub Main
Debug
.Print InStr("Hello","l") ' 3
End
Sub
InStrRev Function
Syntax
InStrRev(S1$, S2$[, Index])
Group
String