Vue js Array every() Method

<html>
  <head>
    <script type="importmap">
  {
    "imports": {
      "vue": "https://unpkg.com/vue@3/dist/vue.esm-browser.js"
    }
  }
</script>
   <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
</head>
    <body>
      <div id="app" class="container">
        <h1>Vue js every() function</h1>
        <p>When all items in an array pass a test, the every()  function returns true .</p>
        <p>check salary : {{salaryies}}</p>
        <button class="btn btn-primary" @click="myFunction">Check Salary</button>
        <p></p>
        <p>{{results}}</p>
      </div>
  <script type="module">
     import { createApp } from 'vue'
     createApp({
     data() {
      return {
          salaryies :['10000','15000','20000'],
          results:''
        }
    },
    methods:{
             myFunction(){
                this.results = this.salaryies.every(this.checkSalary);
              },
             checkSalary(salary){
              return salary > 9000;
            }
          }

}).mount('#app')
</script>
 </body>
</html>