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Module

x/ramda/mod.ts>findIndex

:ram: Practical functional Javascript
Latest
variable findIndex
import { findIndex } from "https://deno.land/x/ramda@v0.27.2/mod.ts";

Returns the index of the first element of the list which matches the predicate, or -1 if no element matches.

Acts as a transducer if a transformer is given in list position.