jQuery toggleClass example

Toggle class name on click in jQuery

by thorst

HTML

<div id="banner-message">
  <p>Hello World</p>
  <button>Change color</button>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

// https://www.math.ucla.edu/~tom/distributions/normal.html
//HASTINGS.  MAX ERROR = .000001
function normalcdf(X) { 
  var T = 1 / (1 + .2316419 * Math.abs(X));
  var D = .3989423 * Math.exp(-X * X / 2);
  var Prob = D * T * (.3193815 + T * (-.3565638 + T * (1.781478 + T * (-1.821256 + T * 1.330274))));
  if (X > 0) {
    Prob = 1 - Prob
  }
  return Prob
}

function compute(x, mean, sd) {

  if (sd < 0) {
    alert("The standard deviation must be nonnegative.")
  } else if (sd == 0) {
    if (x < mean) {
      Prob = 0
    } else {
      Prob = 1
    }
  } else {
    Prob = Math.normalcdf((x - mean) / sd);
    Prob = Math.round(100000 * Prob) / 100000;
  }

  return Prob;
}

let DTE = 5,
  Price = 396.58,
  Strike = 400,
  InterestRate = 7,
  DividendYeild = 0,
  Volitility = 17.77;

Volitility = Volitility / 100;
InterestRate = InterestRate / 100;
DividendYeild = DividendYeild / 100;


let v1 = DTE / 365;
let v2 = Math.log(Price / Strike);
let v3 = (InterestRate - DividendYeild + Math.pow(Volitility, 2) / 2) * v1;
let v4 = Volitility * Math.sqrt(v1)
let v5 = (v2 + v3) / v4
let v7 = compute(v5, 0, 1);
let v13 = Math.exp(-DividendYeild * v1);
let calldelta = v7 * v13;
let putdelta = (v7 - 1) * v13;
console.log("calldelta", calldelta);
console.log("putdelta", putdelta);