new Vue({
    el: '#app',
    data() {
        return {
            name: 'Sirwan'
        };
    },
    beforeCreate: function () {
        console.log('name is: ' + this.name);
        console.log(`We don't have access to target element at this point: ${this.$el}`);
    },
    created: function () {
        // `this` points to the vm instance
        console.log('name is: ' + this.name);
        console.log(`We don't have access to target element at this point: ${this.$el}`);
    }
});

beforeMount: function () {
    console.log(`this.$el doesn't exist yet, but it will soon!`);
},
mounted: function () {
    console.log(this.$el);
}

new Vue({
    el: '#app',
    data() {
        return {
            name: 'Sirwan',
            counter: 0
        };
    },
    created: function () {
        setInterval(() => {
            this.counter++
        }, 1000)
    },
    beforeUpdate: function () {
        console.log(this.counter); // Logs the counter value every second, before the DOM updates.
    },
    updated: function () {
        console.log(`new value: ${this.counter}`);
    }
});

new Vue({
    el: '#app',
    data() {
        return {
            name: 'Sirwan',
            counter: 0
        };
    },
    beforeDestroy: function () {
        
    },
    destroyed() {
        console.log(this) // There's practically nothing here!
    }
});