math-example_huntp/math_example/lib/simple_math.js

An example of creating a package

var math_shared = require('./math_shared.js');

function add(x, y) {
    math_shared.binary_operation(
        x, y, function (_x, _y) { return _x + _y; });
}

function subtract(x, y) {    
    math_shared.binary_operation(
        x, y, function (_x, _y) { return _x - _y; });
}

module.exports = {
    addition: add,
    subtraction: subtract
}