JavaScript

Gadgets/Demo-Sites

• https://kimmobrunfeldt.github.io/progressbar.js/

• https://nbasic.net/apps/particles.html

• https://nbasic.net/apps/bouncing-balls.html

• https://developer.mozilla.org/en-US/play

Java-Script Keycode

• http://keycode.info/

• https://www.codegrepper.com/code-examples/javascript/spacebar key code

Static Code Analysis

https://eslint.org/

Async-Calls

let myPromise = new Promise(function(myResolve, myReject) {
   let req = new XMLHttpRequest();
   req.open('GET', "<URL/API to Call>");
   req.onload = function() {
      if (req.status == 200) {
         myResolve(req.response);
      } else {
         myReject("GET error");
      }
   };
      req.send();
});

myPromise.then(
   function(value) {
      console.debug(value);
      // Do your stuff here, gets executed after the value was returned
   },
   function(error) {
      console.error(error);
   }
);