Vue uses data to report an error 'data' is assigned a value but never used,' how to solve this, thank you

"data" is assigned a value but never used

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Mar.03,2021

this is the rule of eslint. In the figure, data is defined and not used, so an error is reported. You can modify the eslint configuration.
the configuration file is .eslintrc.js


you should define data in the component:

export default{
    name:'login',
    data(){
        return{
            isActive:true
        }
    }
}
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