vue/v-on-style 
enforce
v-ondirective style
- ⚙️ This rule is included in all of 
"plugin:vue/vue3-strongly-recommended",*.configs["flat/strongly-recommended"],"plugin:vue/strongly-recommended",*.configs["flat/vue2-strongly-recommended"],"plugin:vue/vue3-recommended",*.configs["flat/recommended"],"plugin:vue/recommended"and*.configs["flat/vue2-recommended"]. - 🔧 The 
--fixoption on the command line can automatically fix some of the problems reported by this rule. 
📖 Rule Details 
This rule enforces v-on directive style which you should use shorthand or long form.
🔧 Options 
Default is set to shorthand.
json
{
  "vue/v-on-style": ["error", "shorthand" | "longform"]
}"shorthand"(default) ... requires using shorthand."longform"... requires using long form.
"longform" 
👫 Related Rules 
📚 Further Reading 
🚀 Version 
This rule was introduced in eslint-plugin-vue v3.0.0