JSFiddle - React, Tailwind, and code Playground

by shriek

HTML

<button onClick="changeValue()">Change</button>

JavaScript

var anotherVal = [];
var myVar = {
    _value : false,
    get value() {
        if (anotherVal.length > 0) {
            return true;
        } else {
            return false;
        }
    }
};

function changeValue() {
    alert("No changes on array " + myVar.value);
    anotherVal.push(1);
    anotherVal.push(2);
    alert("After changes on array " + myVar.value);

}