round down to nearest whole number js code example

Example 1: round to nearest hundredth javascript

Math.round(X);           // round X to an integer
Math.round(10*X)/10;     // round X to tenths
Math.round(100*X)/100;   // round X to hundredths
Math.round(1000*X)/1000; // round X to thousandths

Example 2: Rounding Up To The Nearest Hundred js

function round100 (num1) {
    return Math.round(num1/100)*100;
}