JSFiddle - React, Tailwind, and code Playground

HTML

<button id="start">start</button>
<button id="stop">stop</button>

JavaScript

var ctx = new AudioContext();
var osc = null;

function startOsc(bool) {
    if(bool === undefined) bool = true;
    
    if(bool === true) {
		osc = ctx.createOscillator();
        osc.frequency.value = 1000;

        osc.start(ctx.currentTime);
        osc.connect(ctx.destination);
    } else {
		osc.stop(ctx.currentTime);
        osc.disconnect(ctx.destination);
        osc = null;
    }
}

$(document).ready(function() {
    $("#start").click(function() {
       startOsc(); 
    });
    $("#stop").click(function() {
       startOsc(false); 
    });
});