Get UTM in Vue.js

main.js

computed: {
  UTM() {
    const { query } = this.$route

    let res = '/?'
    let index = 0

    for (let key in query) {
      if (index > 0) res += `&`
      res += `${key}=${query[key]}`
      index++
    }

    return res
  }
  // ...
}