# vue/no-shared-component-data

enforce component's data property to be a function

⚙️ This rule is included in all of "plugin:vue/vue3-essential", "plugin:vue/essential", "plugin:vue/vue3-strongly-recommended", "plugin:vue/strongly-recommended", "plugin:vue/vue3-recommended" and "plugin:vue/recommended".
🔧 The --fix option on the command line (opens new window) can automatically fix some of the problems reported by this rule.

When using the data property on a component (i.e. anywhere except on new Vue), the value must be a function that returns an object.

# 📖 Rule Details

When the value of data is an object, it’s shared across all instances of a component.

<script>
/* ✓ GOOD */
Vue.component('some-comp', {
  data: function () {
    return {
      foo: 'bar'
    }
  }
})

export default {
  data () {
    return {
      foo: 'bar'
    }
  }
}
</script>

Now loading...

<script>
/* ✗ BAD */
Vue.component('some-comp', {
  data: {
    foo: 'bar'
  }
})

export default {
  data: {
    foo: 'bar'
  }
}
</script>

Now loading...

# 🔧 Options

Nothing.

# 📚 Further Reading

# 🚀 Version

This rule was introduced in eslint-plugin-vue v3.8.0

# 🔍 Implementation

← vue/no-setup-props-destructure vue/no-side-effects-in-computed-properties →