NumberStrings.js

A simple Javascript class that formats numeric values into a more readable format.

By default it will format up to a septillion (1,000,000,000,000,000,000,000,000), however you can pass your own list of units to the constructor if you would like to overwrite/extend the default list of units (more on that below).

If you have any ideas;

• for new features
• to improve performance

please let me know by creating an issue/pull request!

Basic Usage:

Browser

var ns = new NumberStrings();
console.log('1,000 = ' + ns.format(1000)); // outputs: "1,000 = 1 thousand"
console.log('50,000,000 = ' + ns.format(50000000)); // outputs: "50,000,000 = 50 million"
console.log('999,999,999 = ' + ns.format(999999999)); // outputs: "999,999,999 = 999.999999 million"

NodeJS

To install using NPM:

npm install numberstrings

Then use as you would in the browser:

var NumberStrings = require('numberstrings');
var ns = new NumberStrings();

Advanced Usage:

The below methods are useful if you want to further format the decimal or unit name that is returned before they are concatinated into a string (default behavior of ns.format(integer)).

getName(integer):

var ns = new NumberStrings();
ns.getName(1000); // Returns the string "thousand"

getDecimal(integer):

var ns = new NumberStrings();
ns.getDecimal(1000); // Returns the decimal that goes in front of the unit name, in this case: 1

Formatting number of decimal places

var ns = new NumberStrings();
var magicNumber = 123456789;
console.log('Two decimal places: ' + ns.getDecimal(magicNumber).toFixed(2) + ' ' + ns.getName(magicNumber));

Overwriting/extending the list of units:

To overwrite/extend the default list of units, you can pass the below units option to the NumberStrings() constructor. The value is the lowest number that can possibly be counted as the specified unit name.

var ns = new NumberStrings({
        units: [
            {
                name: 'hundred',
                value: 100
            },
            {
                name: 'thousand',
                value: 1000
            },
            {
                name: 'million',
                value: 1000000
            }
            ...
        ]
    });