[рони]

Vlasenko Fedor,
как вариант

let arr1 = [1.58, 0.12, 0.1, 0.06, 0.06, 0.06, 0.05, 0.05, 0.05, 0.05, 0.05, 0.01];
        let arr2 = [0.05,  0.1,  0.06, 0.06, 0.05, 0.05, 0.05,  0.01, 1.58];
        function arrIndex(a, b) {
            let ob = {};
            return b.reduce((ar, el) => {
                let k = ob[el] ??= 0;
                k = a.indexOf(el, k);
                ar.push(k);
                ob[el] = ++k;
                return ar;
            }, [])
        }
        const res = arr2.map(v => this[v] = arr1.indexOf(v, (this[v] ?? -1) + 1));
        console.log(res);
        console.log(arrIndex(arr1, arr2));

но использовать this ??? всё валится в window