include :: ObjectRange

include(value) -> Boolean Determines whether the value is included in the range.

This assumes the values in the range have a valid strict weak ordering (have valid semantics for the < operator). While ObjectRange mixes in Enumerable, this method overrides the default version of include, and is way more efficient (it uses a maximum of two comparisons).

Examples

$R(1, 10).include(5)

// -> true

$R('a', 'h').include('x')

// -> false

$R(1, 10).include(10)

// -> true

$R(1, 10, true).include(10)

// -> false

Prototype API 1.5.0 - prototypejs.org