const states = ["#", "."]

basic.forever(() => {
    let image = ``;
    for (let i = 0; i < 5; i++) {
        const row = getRow();
        image += row;
        if (i != 4) {
            const nl = getNewline();
            image += nl;
        }
    }
    basic.pause(200);
    basic.showLeds(image);
})

function getRow() {
    let row = '';
    for (let i = 0; i < 5; i++) {
        const randomState = states[Math.random(2)];
        row += randomState;
    }

    return row;
}

function getNewline() {
    return `
    `;
}