How to draw dashed line in Canvas

[Mark81]

This code draws a solid line:

Canvas {
    id: canvas
    onPaint: {
        var ctx = canvas.getContext('2d')

        ctx.strokeStyle = "red"
        ctx.lineWidth = 4
        ctx.lineCap = "round"
        ctx.lineJoin = "round"
        ctx.setLineDash = [ 1, 4 ]

        ctx.beginPath()
        ctx.moveTo(2, canvas.height / 2)
        ctx.lineTo(canvas.width - 2, canvas.height / 2)
        ctx.stroke()
    }
}

what I further have to set after setLineDash?

[J.Hilk]

@Mark81

ctx.setLineDash = [ 1, 4 ]

AFAIK setlineDash is a function ->

ctx.setLineDash( [ 1, 4 ] )

[Mark81]

Ups, you're right. I didn't notice that because I received no warnings/error at compile-time nor at run-time!