js-benchmark.mjs

import { readFile, writeFile } from "fs/promises"
import { performance } from "perf_hooks"
import jsonMinify from "jsonminify"

import { standardFiles } from "../test/fixtures.mjs"

// warmup
const tmp = await jsonMinify("{}")

console.log("Benchmark minifyString")

const filesContents = await Promise.all(
  standardFiles.map(async (jsonFile) => {
    return readFile(jsonFile, "utf8")
  }),
)

const t11 = performance.now()

for (const fileContent of filesContents) {
  const data = jsonMinify(fileContent)
}

const t22 = performance.now()
console.log(((t22 - t11) / 1000).toFixed(3), "seconds")

console.log("Benchmark minifyFiles")

const t1 = performance.now()

await Promise.all(
  standardFiles.map(async (jsonFile) => {
    const jsonString = await readFile(jsonFile, "utf8")
    const data = await jsonMinify(jsonString)
    return await writeFile(jsonFile, data)
  }),
)

const t2 = performance.now()
console.log(((t2 - t1) / 1000).toFixed(3), "seconds")