semi functional experiment with numbers

semifunctional-number-experiment.js

var plus = (a, b) => a + b;
var minus = (a, b) => a - b;
var divide = (a,b) => a / b;
var multiply = (a,b) => a * b;

var num = a => ({
    add(b) {
        a = plus(a, b);
        return this;
    },
    minus(b) {
        a = minus(a, b);
        return this;
    },
    multiply(b) {
        a = multiply(a,b);
        return this;
    },
    divide(b) {
        a = divide(a,b);
        return this;
    },
    increase(...nums) {
        a = nums.reduce(plus, a);
        return this;
    },
    decrease(...nums) {
        a = nums.reduce(minus, a);
        return this;
    },
    print() {
        console.log(a);
        return this;
    },
    get() {
        return a;
    },
    set(b) {
        a = b;
        return this;
    }
});