Nodejs Float Round roundTo(num)

Method Source Code

Number.prototype.roundTo = function(num) {
  var resto = this%num;
  if (resto <= (num/2)) {
    return this-resto;
  } else {/*ww  w . j a v  a2s .  c o  m*/
    return this+num-resto;
  }
};

Related

1. round5()

   Number.prototype.round5 = function() {
     return ((this)- (this % 5));
   

2. roundDecimal()

   Number.prototype.roundDecimal = function() {
     return Math.roundDecimal(this);
   };
   

3. roundMoney(decimals = 2)

   Number.prototype.roundMoney = Number.prototype.toObject || function roundMoney(decimals = 2) {
     return Number((Math.round(this + "e" + decimals) + "e-" + decimals));
   };
   

4. roundNumber.prototype.round || (precision)

   Number.prototype.round = Number.prototype.round || function (precision) {
     return Math.round(this * Math.pow(10, (precision || 2))) / Math.pow(10, (precision || 2))
   

5. roundTo()

   Number.prototype.roundTo = function() {
       return 32 * Math.round(this / 32);
   

6. roundToFixed(radix)

   Number.prototype.roundToFixed = function (radix) {
       var val = this;
       radix = radix || 0;
       val *= Math.pow(10, radix);
       val = Math.round(val);
       val /= Math.pow(10, radix);
       return val;
   };
   

7. roundToPrec(precision)

   Number.prototype.roundToPrec = function(precision)
       var power = Math.pow(10, precision || 0);
       return Math.round(this * power) / power;
   

8. roundToTwoDPoints()

   Number.prototype.roundToTwoDPoints = function() {
     if (isNaN(this)) {
       console.log(this);
       console.dir(this);
       throw new Error('Not a number!');
     return Math.round((this + 0.00001) * 100) / 100;
   };
   

9. ceil()

   Number.prototype.ceil = function(){
       return Math.ceil(this);
   };