Cannot read property '$moment' of undefined

how to use nuxt moment?

i was added nuxt moment on module nuxt.config.js and i try to call moment on mounted() a page but has undefined $moment.

nuxt.config.js

modules: [
    ...
    '@nuxtjs/moment',
    ...
  ],

pages

mounted() {
    console.log(this.$moment) // undefined $moment
  },

[PayteR]

same error here, when i call function in template

{{ $moment(post.post_date).format('HH:mm') }} // works well

it works just fine, when it’s used in mounted() it’s fine too

  mounted: function() {
    console.log(this.$moment) // works well
  },

but when i want to use it in apollo query variable, then it’s undefined

apollo: {
    posts: {
      query() {
        return POSTS_QUERY
      },
      update: data => data.postsElastic,
      variables() {
        // Use vue reactive properties here
        return {
          date_after: this.$moment().format() // undefined
        }
      }
    }
  }

[teledirigido]

Make sure you did installed Nuxt Moment: yarn add moment @nuxtjs/moment OR npm i moment @nuxtjs/moment