Nodejs Number Calculate float()

Method Source Code

var num = 5;//w w  w.  j ava 2s  . c  om
Number.prototype.float = function(){ 
         return this.toFixed(2);
}


Number.prototype.int = function(){ 
         return parseInt(this) ;
}

console.log(num.float());
console.log(num);
var num2 = 90.897;

console.log(num2.int());
console.log(num2.float());
console.log(num2);

Related

1. fe(x)

   Number.prototype.fe = function(x)
     var s = x.toString();
     var point = s.search(/\./);
     if (point == -1)
       return (Math.abs(this - x) < 0.5);    
     else
   ...
   

2. fillZero(len)

   Number.prototype.fillZero = function (len)
     var s = this.toString(10);
     while (s.length<len) s = "0" + s;
     return s;
   

3. firstDigit()

   Number.prototype.firstDigit = Number.prototype.firstDigit || function () {
     let number = this;
     while (number >= 10) {
       number = Math.floor(number / 10);
     return number;
   };
   

4. fix(n)

   Number.prototype.fix = function (n) {
       var val = String(this);
       n = Math.abs(n);
       val = val.split('.');
       val[1] = val[1] || '';
       var m = val[1].length;
       if (m < n) {
           m = n - m;
           while (m > 0) {
   ...
   

5. fizz()

   Number.prototype.fizz = function() {
       return this % 3 === 0 ? "fizz" : "";
   };
   Number.prototype.buzz = function() {
       return this % 5 === 0 ? "buzz" : "";
   };
   for (var i = 1; i <= 15; i++) {
       var candidate = Number(i).fizz() + Number(i).buzz();
       console.log(candidate ? candidate : i);
   ...
   

6. floatMethod()

   Number.prototype.floatMethod = function() {
       return parseFloat(this).toFixed(2);
   };
   function convert_float() {
       var n = 60.00;
      console.log(n.floatMethod());
   convert_float(n);
   

7. frac()

   Number.prototype.frac = function() {
     return this - Math.floor(this);
   };
   

8. fuzzyEqual(otherNumber)

   Number.prototype.fuzzyEqual = function(otherNumber)
       return Math.abs(this - otherNumber) <= 0.00001;
   

9. gcd(b)

   Number.prototype.gcd = function(b) {
     return (b == 0) ? this : this.gcd(this % b);