InnerText vs TextContent Property in Javascript

Th key difference sample code between innertext and textcontent property in javascript.
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="style.css">
    <title>Document</title>
</head>
<body>
    
    <div>
        Hello World

        <span>This is hidden</span>
    </div>

    <button>Click Here</button>

    <script src="script.js"></script>
</body>
</html>

 

document.querySelector('button').addEventListener('click', ()=>{
    const result = document.querySelector('div').textContent;

    console.log(result);
});

 

div {
    width: 100%;
    background-color: maroon;
    text-align: center;
    padding: 10px;
    margin-bottom: 15px;
    color: #fff;
}

span {
    display:none;
}