# 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 (opens new window) 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 (opens new window) for more details.

createApp({ /* ✗ BAD */ data: { foo: null } }).mount('#app') createApp({ /* ✓ GOOD */ data () { return { foo: null } } }).mount('#app')
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<script> export default { /* ✗ BAD */ data: { foo: null } } </script>
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<script> export default { /* ✓ GOOD */ data () { return { foo: null } } } </script>
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# 🔧 Options

Nothing.

# 📚 Further Reading

# 🚀 Version

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

# 🔍 Implementation