Convert all .jpg and .jpeg files in the current directory to webp instead using the sharp package from NPM

script.js

const sharp = require("sharp")
const fs = require("fs").promises

async function start() {
  // create the converted-images folder if it does not exist yet
  fs.mkdir("./converted-images", { recursive: true })

  // create array of all files in current directory
  const files = await fs.readdir("./")

  // filter for only the .jpg and .jpeg files
  const onlyJpgs = files.filter(file => {
    return file.endsWith(".jpg") || file.endsWith(".jpeg")
  })

  // for each one convert it to webp
  onlyJpgs.forEach(file => {
    let newfilename

    if (file.endsWith(".jpg")) {
      newfilename = file.slice(0, -4) + ".webp"
    }

    if (file.endsWith(".jpeg")) {
      newfilename = file.slice(0, -5) + ".webp"
    }

    jpg2webp(file, `converted-images/${newfilename}`)
  })
}

start()

async function jpg2webp(input, output) {
  try {
    const inputBuffer = await fs.readFile(input)
    const webpBuffer = await sharp(inputBuffer).webp().toBuffer()

    // if you also want to resize the image then remove the
    // line above this line and uncomment the line below

    //const webpBuffer = await sharp(inputBuffer).resize({ width: 1024 }).webp().toBuffer()

    await fs.writeFile(output, webpBuffer)
    console.log(`${input} was converted.`)
  } catch (error) {
    console.error("There was an error:", error)
  }
}