javascript - Vue js : Filter dynamic data

Question

In my Vuejs below I want to filter the reviewed:true only questions, and get the length of them, but my code below gives an error TypeError: question.reviewed.includes is not a function ,is there a way to do it?

Here is the screenshot about the json file: JSON File

 filterReviewed() {
      return this.questions.filter((question) => {
        return (
            question.reviewed
            .includes('true')
        );
      });
    },

question from:https://stackoverflow.com/questions/65865091/vue-js-filter-dynamic-data

Answer 1

includes is a method of Object of Array type. Directly judge attribute reviewed is OK

filterReviewed (){
  return this.questions.filter((question) => question.reviewed);
}