MM Print

function PrintMM(num){
    const spaceSymbol = '-';
    const wordSymbol = '*';
    let half = Math.floor(num / 2);
    let border = Math.ceil(num / 2);
    let result = '';

    for (let i = 0; i < border; i++) {
        result += spaceSymbol.repeat(Math.max(num - i, 0));
        result += wordSymbol.repeat(Math.max(i * 2 + num, 0));
        result += spaceSymbol.repeat(Math.max(num - i * 2, 0));
        result += wordSymbol.repeat(Math.max(i * 2 + num, 0 ));
        result += spaceSymbol.repeat(Math.max(num * 2 - i * 2, 0));
        result += wordSymbol.repeat(Math.max(i * 2 + num, 0));
        result += spaceSymbol.repeat(Math.max(num - i * 2, 0));
        result += wordSymbol.repeat(Math.max(i * 2 + num, 0 ));
        result += spaceSymbol.repeat(Math.max(num - i, 0));
        result += '\n';
    }

    for (let i = 0; i < border; i++) {
        result += spaceSymbol.repeat(Math.max(half - i, 0));
        result += wordSymbol.repeat(Math.max(num, 0));
        result += spaceSymbol.repeat(i * 2 + 1);
        result += wordSymbol.repeat(Math.max(num * 2 - 1 - 2 * i, 0));
        result += spaceSymbol.repeat(i * 2 + 1);
        result += wordSymbol.repeat(Math.max(num, 0));
        result += spaceSymbol.repeat(Math.max(num - 1 - i * 2, 0));
        result += wordSymbol.repeat(Math.max(num, 0));
        result += spaceSymbol.repeat(i * 2 + 1);
        result += wordSymbol.repeat(Math.max(num * 2 - 1 - 2 * i, 0));
        result += spaceSymbol.repeat(i * 2 + 1);
        result += wordSymbol.repeat(Math.max(num, 0));
        result += spaceSymbol.repeat(Math.max(half - i, 0));
        result += '\n';
    }
    console.log(result);
}

PrintMM(7);