vl-position (AutoLISP)

Returns the index of the specified list item

Supported Platforms: Windows and Mac OS

Signature

(vl-position symbol list)

symbol

Type: Integer, Real, String, File, Symbol, Ename (entity name), T, or nil

Any AutoLISP symbol.

list

Type: List

A true list.

Return Values

Type: Integer or nil

A numeric value containing the index position of symbol in list; otherwise nil if symbol does not exist in the list.

Note: The first list element is index 0, the second element is index 1, and so on.

Examples

(setq stuff (list "a" "b" "c" "d" "e"))
("a" "b" "c" "d" "e")

(vl-position "c" stuff)
2