Filter Nested Array

by boldstar

HTML

<div id="app">
  <h2>Engagements:</h2>
  <div>
    <div v-for="(engagment, index) in filteredQuestions" :key="index">
      <li v-for="question in engagment.questions" :key="question.id">
        <span>{{ question.id }},</span>
        <span> {{ question.question}} </span>
        <span><input type="checkbox" v-model="question.answered"></span>
      </li>
    </div>
  </div>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
  list-style: none;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

del {
  color: rgba(0, 0, 0, 0.3);
}

JavaScript

new Vue({
  el: "#app",
  data: {
    engagements: [
      { 
      	id: 1,
      	text: "1040", 
        questions: [
        	{
          	id: 1,
            question: 'this is a question',
            answered: 0
          },
          {
          	id: 2,
            question: 'this is a question',
            answered: 1
          },
        ]
      },
      { 
      	id: 2,
      	text: "1040", 
        questions: [
        	{
          	id: 3,
            question: 'this is a question',
            answered: 0
          },
        ]
      },
    ]
  },
  computed: {
  	filteredQuestions() {
    	const engagement =  this.engagements.filter((engagement) => {
            return engagement.questions.filter((question) => question.answered === 0)
        })
        return engagement
    }
  }
})