Pause

canvas.node(1).add({
    size: 20,
    labels: { 0: { size: 16 } }
})

for (let i = 3; i > 0; i--) {
    canvas.node(1).label().text(i)
    canvas.pause(1)
}

canvas.node(1).add({
    size: 30,
    color: 'green',
    labels: { 0: { text: 'Go!' } }
})