javascript - How to round down number 2 decimal places?

To round down

console.log(1.0789.toFixed(2)); // 1.08

To trim

function trim(number, precision){
    var array = number.toString().split(".");
    array.push(array.pop().substring(0, precision));
    var trimmedNumber =  array.join(".");
    console.log(trimmedNumber);
}
trim(1.0789, 2); //1.07