# vue/no-deprecated-events-api

disallow using deprecated events api (in Vue.js 3.0.0+)

⚙️ This rule is included in all of "plugin:vue/vue3-essential", "plugin:vue/vue3-strongly-recommended" and "plugin:vue/vue3-recommended".

# 📖 Rule Details

This rule reports use of deprecated $on, $off $once api. (in Vue.js 3.0.0+).

See Migration Guide - Events API (opens new window) for more details.

<script>
/* ✗ BAD */
export default {
  mounted () {
    this.$on('start', function(args) {
      console.log('start')
    })
    this.$emit('start')
  }
}
</script>

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<script>
/* ✓ GOOD */
import mitt from 'mitt'
const emitter = mitt()
export default {
  mounted () {
    emitter.on('start', function(args) {
      console.log('start')
    })
    emitter.emit('start')
  }
}
</script>

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# 🔧 Options

Nothing.

# 📚 Further Reading

# 🚀 Version

This rule was introduced in eslint-plugin-vue v7.0.0

# 🔍 Implementation

← vue/no-deprecated-dollar-scopedslots-api vue/no-deprecated-filter →