last-index-of

v0.9.6

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Passing

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Public

PUBLISHED

5 years ago

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2 KB

Returns the position of the last occurrence of an item in an array, or -1 if the item is not included in the array.

Array

Utils

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lastIndexOf (

target:*,

xs:Array

) : Number

Returns the position of the last occurrence of an item in an array, or -1 if the item is not included in the array. R.equals is used to determine equality.

Example

R.lastIndexOf(3, [-1,3,3,0,1,2,3,4]); //=> 6
     R.lastIndexOf(10, [1,2,3,4]); //=> -1

Arguments

target: *

The item to find.

xs: Array

The array to search in.

Returns

Number

the index of the target, or -1 if the target is not found.