java script

    <script>
        let a = ['사과','배','수박'];
        console.log(a[0]);

        let person = {'name' : 'bob', 'age' : 30, 'heigth' : 180}
        console.log(person['name']);
        console.log(person['age'])

        let name = person['name'];
        let age = person['age'];
        console.log(name,age);
        
        let ages = [15,30,28,7,40,13];
        ages.forEach(a => {
        if(a>20){
            console.log("성인입니다.")
        }else{
            console.log("청소년입니다.")
        }
       });

    </script>