requirebin sketch

index.js

// require() some stuff from npm (like you were using browserify)
// and then hit Rebuild to run it on the right
var xpy = 0.12345678
var btc = 0.011
var priceFormatted = Number(xpy * btc)
var price = Number(xpy * btc)
document.body.innerHTML = '<div>price:  ' + price + 
  '</div><div>formatted:  ' + priceFormatted + '</div>'

var goback = Number(+priceFormatted / btc).toFixed(8)
document.body.innerHTML = document.body.innerHTML + '<div>back:  ' + goback + '</div>'

var a = 0.1
var b = 0.2

document.body.innerHTML = document.body.innerHTML + '<div>test:  ' + (a + b) + '</div>' 

minified.js

var xpy=.12345678;var btc=.011;var priceFormatted=Number(xpy*btc).toFixed(15);var price=Number(xpy*btc);document.body.innerHTML="<div>price:  "+price+"</div><div>formatted:  "+priceFormatted+"</div>";var goback=Number(+priceFormatted/btc).toFixed(8);document.body.innerHTML=document.body.innerHTML+"<div>back:  "+goback+"</div>";var a=.1;var b=.2;document.body.innerHTML=document.body.innerHTML+"<div>test:  "+(a+b)+"</div>";

package.json

{
  "name": "requirebin-sketch",
  "version": "1.0.0"
}

page-head.html

<style type='text/css'>html, body { margin: 0; padding: 0; border: 0; }
body, html { height: 100%; width: 100%; }</style>

requirebin.md

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