Basic Converter

function solve(numberAsText, inputType, outputType) {

    let number = Number(numberAsText); // in Centimeters

    if (inputType === "m") {
        number = number * 100; // Converting cm to m
    } else if (inputType === "mm") {
        number = number / 10;  // Converting cm to mm
    }

    if (outputType === "m") {
        number = number / 100;
    } else if (outputType === "mm") {
        number = number * 10;
    }

    console.log(number.toFixed(3))
}