Web Development

var app = new Vue({
    el: '#app',
    data: {
        message: 'Hello Vue!'
    }
})

var myVar = {
    get a() {
        return app.message
    },
    set a(b) {
	app.message = b
    }
}

<img :src="vbtheURL" v-if="vbuserId">

<span :style="avatarStyle" v-else>

computed: {
    avatarStyle() {
        return {
             'font-size': '3em',
             cursor: 'pointer',
             /* etc... */
        }
    }
}