layout	page_title	sidebar_current	description
functions	index function	docs-funcs-collection-index	The index function finds the element index for a given value in a list.

`index` Function

index finds the element index for a given value in a list.

index(list, value)

The returned index is zero-based. This function produces an error if the given value is not present in the list.

Examples

> index(["a", "b", "c"], "b")
1