Answers for "roundup es6 without decimals"

js round up decimal

Math.round(3.14159)  // 3
Math.round(3.5)      // 4
Math.floor(3.8)      // 3
Math.ceil(3.2)       // 4

javascript decimals without rounding

function getFlooredFixed(v, d) {
    return (Math.floor(v * Math.pow(10, d)) / Math.pow(10, d)).toFixed(d);
}

var x = 2.305185185185195;

document.write(getFlooredFixed(x, 5));