Benchmark modified version of murmurhash3js with multi-byte character code handling against original

murmurhash3.bench.js

import Benchmark from "benchmark";
import benchmarks from "beautify-benchmark";
import polyfill from "text-encoding";

import murmurhash3jsOriginal from "murmurhash3js";
import murmurhash3jsModified from "@cimi/murmurhash3js";

test.only(
  "benchmark example",
  () => {
    const suite = new Benchmark.Suite();
    const originalHash = murmurhash3jsOriginal.x86.hash128;
    const modifiedHash = murmurhash3jsModified.x86.hash128;

    const getBytes = (() => {
      const textEncoder = new polyfill.TextEncoder(); // ? new TextEncoder() : undefined;
      return str => textEncoder.encode(str);
    })();
    const str = "My hovercraft is full of eels.";
    const multibyte = "My 🚀 is full of 🐍.";

    suite
      .add("original hash applied to ascii string", function() {
        originalHash(str);
      })
      .add("modified hash applied to ascii string", function () {
        modifiedHash(getBytes(str));
      })
      .add("original hash applied to multibyte string", function() {
        originalHash(multibyte);
      })
      .add("modified hash applied to multibyte string", function () {
        modifiedHash(getBytes(multibyte));
      })
      .on("cycle", function(event) {
        benchmarks.add(event.target);
      })
      .on("complete", function() {
        benchmarks.log();
      })
      .run();
  },
  60000
);