main.go

package main

import (
	"strconv"
	"time"

	"github.com/gopherjs/vecty"
	"github.com/gopherjs/vecty/elem"
	"github.com/gopherjs/vecty/event"
)

func main() {
	body := &Body{}
	vecty.RenderBody(body)
}

type Body struct {
	vecty.Core
}

func (b *Body) Mount() {
	go func() {
		for {
			vecty.Rerender(b)
			time.Sleep(time.Second)
		}
	}()
}

func (b *Body) Render() vecty.ComponentOrHTML {
	return elem.Body(
		&Component{},
	)
}

type Component struct {
	vecty.Core
	Count int
}

func (c *Component) Render() vecty.ComponentOrHTML {
	return elem.Div(
		elem.Button(
			vecty.Markup(event.Click(func(ev *vecty.Event) {
				c.Count += 1
				vecty.Rerender(c)
			})),
			vecty.Text("Increment"),
		),
		vecty.Text(strconv.Itoa(c.Count)),
	)
}