Foundry VTT macro to calculate pythagorean distance

gistfile1.txt

new Dialog({
  title:'Example Dialog',
  content:`
    <form>
      <div class="form-group">
        <label>Distance</label>
        <input type='text' name='distance'></input>
        <label>Height</label>
        <input type='text' name='height'></input>
      </div>
    </form>`,
  buttons:{
    yes: {
      icon: "<i class='fas fa-check'></i>",
      label: "Calculate"
    }},
  default:'yes',
  close: html => {
    let d = html.find('input[name=\'distance\']');
    let h = html.find('input[name=\'height\']');

    if (d.val()!== '' && h.val()!== '') {
      let calc = Math.sqrt(Math.pow(parseInt(d.val()),2) + Math.pow(parseInt(h.val()),2));
        let chatData = {
	        content: calc
	    };
	    ChatMessage.create(chatData, {});
      }
    }
}).render(true);