micro bit radio

Hello Everyone
Gordon has already kindly pointed me in the direction of more documentation. Unfortunately, I'm not an Espruino person - so I'm missing a lot of the background knowledge - so the Espruino radio api doesn't mean anything to me.

Does anyone whether it is possible, or how, to access the radio from Espruino. As a example, I have a simple javascript (written for the blockly...microsoft editor) that follows:
N.B. I know this won't work in Espruino...

let x = 0
let y = 0
input.onButtonPressed(Button.B, () => {
    radio.sendNumber(x + 5 * y)
})
input.onButtonPressed(Button.A, () => {
    led.unplot(x, y)
    x += 1
    if (x > 4) {
        x = 0
        y += 1
        if (y > 4) {
            y = 0
        }
    }
    led.plot(x, y)
})
radio.onDataPacketReceived(({receivedNum­ber: recd}) => {
    y = recd / 5
    x = recd - y * 5
    led.plot(x, y)
})
x = 0
y = -1
radio.setGroup(4)

Any hints, tips, tutorials or pointers to documentation would be very welcome.

Best wishes
Andy Stratton