Quantities
A super-simple JavaScript library for physical quantity representation and conversion
Can be used in the browser or in Node. Compatible with browser stand-alone, CommonJS and AMD.
API
Quantity(value, units)
Create a new Quantity
object to hold value
and units
.
var kg101 = new Quantity(101, Quantity.KG);
var lb202 = Quantity(202, Quantity.LB); // will do an implicit 'new' for you
kg101.value === 101;
lb202.value === 202;
kg101.units === 'kg' === Quantity.KG;
lb202.units === 'lb' === Quantity.LB;
Units available are:
Quantity.KG // kilograms
Quantity.LB // pounds
Quantity.MM // millimetres
Quantity.CM // centimetres
Quantity.M // metres
Quantity.IN // inches
Quantity#convertTo(units)
Convert a Quantity
object to another Quantity
object of specified `units.
var lb = new Quantity(101, Quantity.KG).convertTo(Quantity.LB);
lb.value === 222.667; // approx
lb.units === 'lb';
License
Quantities is Copyright (c) 2013 Rod Vagg @rvagg and licenced under the MIT licence. All rights not explicitly granted in the MIT license are reserved. See the included LICENSE file for more details.
Note about style: this project is far from my normal coding style; it's roughly equivalent to "Crockford-style". It also uses Mocha, Chai and Istanbul which I also don't normally use. But it is my code! This project is for experimentation and teaching.