COUNTER INSTANCE

counter-instance.markdown

COUNTER INSTANCE

A Pen by Bzozoo on CodePen.

License.

script.js

console.clear();
const counter = new Counter({min:-15, from: 0, step: 2, max: 100 });
const addStep = ()=>counter.incr();
const subStep = ()=>counter.decr();
const resetCounter = ()=>counter.reset()
const setStep = (number)=>counter.setStep(number)

function Counter({min, from, step, max}){
	let actual = from;
	const defaults = {min, from, step, max, actual}
	this.incr = function(){
		return actual >=max? max : actual += step
	}
	this.decr = function(){
		return actual <=min? min : actual -= step
	}
	this.reset = function(){
		return {min, from, step, max, actual} = defaults;
	}
	this.setStep = function(number){
		if(typeof number === 'number'){
			return step = number;
		} else {
			return "Not a number"
		}		
	}
	this.getActual = function(){return actual}
	this.getDefaults = function(){return defaults}
}

// Tests
console.log('ADD STEPS with 2:', addStep(), addStep(), addStep(), addStep(), addStep())
setStep(10)
console.log('ADD STEPS with 10:', addStep(), addStep(), addStep(), addStep(), addStep())
console.log('ACTUAL:', counter.getActual())
console.log('SUBSTRACTION with 10:', subStep(), subStep(),subStep())
setStep(15)
console.log('SUBSTRACTION with 15:', subStep(), subStep(),subStep(),subStep(),subStep())
console.log(counter.getDefaults())