class Worker {
constructor(id, name, age) {
this.id = id;
this.name = name;
this.age = age;
this.show = function () {
console.log(this.id + ' ' + this.name);
};
}
}
const worker = new Worker(2345, 'Tom', 54);
Object.entries(worker).map(key_val => {
console.log(key_val);
});
/*
run:
[ 'id', 2345 ]
[ 'name', 'Tom' ]
[ 'age', 54 ]
[ 'show', [Function] ]
*/