eslint-plugin-vue

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vue/no-duplicate-attributes ​

disallow duplication of attributes

  • ⚙️ This rule is included in the following preset configs:
    • *.configs["flat/essential"]
    • *.configs["flat/vue2-essential"]
    • *.configs["flat/strongly-recommended"]
    • *.configs["flat/vue2-strongly-recommended"]
    • *.configs["flat/recommended"]
    • *.configs["flat/vue2-recommended"]
    • "plugin:vue/essential"
    • "plugin:vue/vue2-essential"
    • "plugin:vue/strongly-recommended"
    • "plugin:vue/vue2-strongly-recommended"
    • "plugin:vue/recommended"
    • "plugin:vue/vue2-recommended"

When there are multiple attributes with the same name on a component, only the last one is used and the rest are ignored, so this is usually a mistake.

📖 Rule Details ​

This rule reports duplicate attributes. v-bind:foo directives are handled as the attribute foo.

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🔧 Options ​

json
{
  "vue/no-duplicate-attributes": ["error", {
    "allowCoexistClass": true,
    "allowCoexistStyle": true
  }]
}
  • allowCoexistClass (boolean) ... Enables v-bind:class directive can coexist with the plain class attribute. Default is true.
  • allowCoexistStyle (boolean) ... Enables v-bind:style directive can coexist with the plain style attribute. Default is true.

"allowCoexistClass": false, "allowCoexistStyle": false ​

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🚀 Version ​

This rule was introduced in eslint-plugin-vue v3.0.0

🔍 Implementation ​