no-deprecated-data-object-declaration.md

pageClass	sidebarDepth	title	description	since
rule-details	0	vue/no-deprecated-data-object-declaration	disallow using deprecated object declaration on data (in Vue.js 3.0.0+)	v7.0.0

vue/no-deprecated-data-object-declaration

disallow using deprecated object declaration on data (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".
• 🔧 The --fix option on the command line can automatically fix some of the problems reported by this rule.

📖 Rule Details

This rule reports use of deprecated object declaration on data property (in Vue.js 3.0.0+). The different from vue/no-shared-component-data is the root instance being also disallowed.

See Migration Guide - Data Option for more details.

createApp({
  /* ✗ BAD */
  data: {
    foo: null
  }
}).mount('#app')

createApp({
  /* ✓ GOOD */
  data () {
    return {
      foo: null
    }
  }
}).mount('#app')

<script>
export default {
  /* ✗ BAD */
  data: {
    foo: null
  }
}
</script>

<script>
export default {
  /* ✓ GOOD */
  data () {
    return {
      foo: null
    }
  }
}
</script>

🔧 Options

Nothing.

📚 Further Reading

• Migration Guide - Data Option
• Vue RFCs - 0019-remove-data-object-declaration

🚀 Version

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

🔍 Implementation

• Rule source
• Test source