Metric Converter

function metricConverter(input) {
    let number = Number(input[0]);
    let inputMetric = input[1];
    let outputMetric = input[2];

    if (inputMetric === "mm") {
        if (outputMetric === "cm") {
            number /= 10;
        } else {
            number /= 1000;
        }
    } else if (inputMetric === "cm") {
        if (outputMetric === "m") {
            number /= 100;
        } else {
            number *= 10;
        }
    } else {
        if (outputMetric === "cm") {
            number *= 100;
        } else {
            number *= 1000;
        }
    }
    console.log(`${number.toFixed(3)}`);
}