Nodejs Float Round round()

Method Source Code

/**/*from   ww w .j  a  v  a 2s . c  o m*/
 * Rounds the current number
 *
 * @return {Integer}
 */
Number.prototype.round = function() {
   return Math.round(this);
};

Related

1. roundTo (num, to)

   Math.ceilTo = function roundTo (num, to) {
       if (num < to) {
           return to;
       var amount = to * Math.ceil(num / to);
       if (amount === 0) {
           amount = to;
       return amount;
   ...
   

2. roundTo(num, to)

   Math.roundTo = function roundTo (num, to) {
       if (num < to / 2) {
           return 0;
       var amount = to * Math.round(num / to);
       if (amount === 0) {
           amount = to;
       return amount;
   ...
   

3. decRound(num, decimals)

   function MyMath () {}
   MyMath.decRound = function(num, decimals){
       return Math.round(num*Math.pow(10,decimals))/Math.pow(10,decimals);
   

4. $round(fractionalDigits)

   Number.prototype.$round = function(fractionalDigits) {
       return parseFloat(this.toFixed(fractionalDigits));
   };
   

5. ToRound(digits)

   Number.prototype.ToRound = function (digits) {
       if (digits < 0 || digits > 10)
           return this;
       var pow10 = Math.pow(10, digits);
       return Math.round(this * pow10) / pow10;
   };
   

6. round()

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

7. round(d)

   Number.prototype.round = function(d) {
     const string_number = String(this)
     const split_string = string_number.split('.')
     if (split_string.length === 1) return this
     const integer_chunk = split_string[0]
     if (!d) return integer_chunk
     const decimal_chunk = split_string[1]
     const determinig_digit = parseInt(decimal_chunk[d])
     if (determinig_digit < 5) {
   ...
   

8. round(decimals)return round(this,decimals);}

   exports.round = function(number,decimals){return round(number,decimals);}
   Number.prototype.round = function(decimals){return round(this,decimals);}
   var round = function(number,decimals){
     if(!isNaN(number)){
       var d = 1;
       if(!isNaN(decimals)){
         d = Math.pow(10,decimals)
       return Math.round(number * d)/d;
   ...
   

9. round(dp)

   Number.prototype.round = function(dp) {
       multiplier = Math.pow(10,dp);
       return Math.round(this*multiplier) / multiplier;