kanan-kiri.js

const command = (cmd, text, position) => {
  let index = position - 1;
  let countL = 0;
  let countB = 0;

  cmd.map(item => {
    if(item === "l"){
      countL += 1
      console.log(`L : ${L(text, position + countL)}`)
    }

    if(item === "b"){
      countB += 1
      console.log(`B : ${B(text, position + countB)}`)
    }
  })
}

const L = (text, position) => {
  const splitText = text.split("")
  splitText[position] = `[${splitText[position]}]`
  return splitText.join("")
}

const B = (text, position) => {
  const splitTextBySpace = text.split(" ")
  const splitText = splitTextBySpace[position].split("")
  splitText[0] = `[${splitText[0]}]`

  splitTextBySpace[position] = splitText.join("")
  return splitTextBySpace.join(" ")
}

// console.log(l("helo"))


const dataA = "aku mau hidup seribu tahun lagi"
const dataB = "robohnya surau kami"

console.log("===[OUTPUT]===")
command(["l", "l"], dataA, 3)
command(["b"], dataB, 1)