JSFiddle - React, Tailwind, and code Playground

by teropa

Babel + JSX

let audioCtx = new AudioContext();

let osc = audioCtx.createOscillator();

osc.frequency.setValueAtTime(440, audioCtx.currentTime);
osc.frequency.linearRampToValueAtTime(
  440 * Math.pow(2, 1/12),
  audioCtx.currentTime + 1
);

osc.connect(audioCtx.destination);
osc.start();
osc.stop(audioCtx.currentTime + 3);