number-es5

Browser support

Desktop: Chrome, Safari, Firefox, Opera, IE9+

Installation

    npm install number-es5
 
    or 
 
    jspm install npm:number-es5

Usage

 
    var Numbers = require('number-es5');
 
    
    /**
    * precision() method is very useful.
    * It can handle the IEEE weirdness.
    */
    Nums.precision(0.01);                   // 2
    Nums.precision(4 / 5);                  // 1
    Nums.precision(9);                      // 0
    Nums.precision(10);                     // -1
    Nums.precision(1000);                   // -3
    
    /**
    * Now some more difficult.
    */
    
    // 74.44999999999999 -> 74.45 -> 2 decimals
    Nums.precision(74.35 + 0.1);                                // 2
    
    // 74.36000000000001 -> 74.36 -> 2 decimals
    Nums.precision(74.36000000000001);                          // 2
 
    // 0.30000000000000004 -> 0.3 -> 1 decimal
    Nums.precision(0.1 + 0.2);                                  // 1
    
    // 153.26999999999998 -> 153.27 -> 2 decimals
    Nums.precision(153.26 + .01);                               // 2
    
    // (1 / 3) -> 0.333333333333333 -> 14 decimals
    Nums.precision(1 / 3);                                      // 14
    
    // 22.628800000000002 -> 22.6288 -> 4 decimals
    Nums.precision(parseFloat("22.628800000000002"));           // 4
    
    // 23.760240000000003 -> 23.76024 -> 5 decimals
    Nums.precision(parseFloat("23.760240000000003"));           // 5
    
    // 998.29499999999905 -> 998.295 -> 3 decimals
    Nums.precision(parseFloat("998.29499999999905"));           // 3
    
    // 594.03500000000042 -> 594.035 -> 3 decimals
    Nums.precision(parseFloat("594.03500000000042"));           // 3
 
 
    /**
    * getFormatter() 
    */
    var num = 5.125;
    Nums.getFormatter("0.00")  (num);           // "5.13"
    Nums.getFormatter("0.0000")(num);           // "5.1250"
    Nums.getFormatter("0'1/8") (num);           // "5'1"
    
    num = 0.2467;
    Nums.getFormatter("0%")    (num);           // "25%"
    Nums.getFormatter("0.00%") (num);           // "24.67%"
    Nums.getFormatter("+0.00%")(num);           // "+24.67%"
 
    Nums.getFormatter("0'1/8") (-12.5);         // "-12'4"
 
 

Public properties and methods :

 
        /**
         * Returns whether argument is a finite number.
         * @return {Boolean} 
         */
        isNumber: function (num)

Tests

    npm test          

Todo

• Add complete document 🎈