locutus/esm/golang/strings/LastIndex.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

export function LastIndex(s, sep) {
    //      discuss at: https://locutus.io/golang/strings/LastIndex
    // parity verified: Go 1.23
    //     original by: Kevin van Zonneveld (https://kvz.io)
    //        input by: GopherJS (https://www.gopherjs.org/)
    //       example 1: LastIndex('go gopher', 'go')
    //       returns 1: 3
    //       example 2: LastIndex('go gopher', 'rodent')
    //       returns 2: -1
    return s.lastIndexOf(sep);
}