<!DOCTYPE html>
<html>
<body>
<h1>JavaScript関数bind()</h1>
<p>この例では、3 秒後に人の名前が表示されます。</p>
<p id="demo"></p>
<script>
const person = {
firstName:"John",
lastName: "Doe",
display: function() {
let x = document.getElementById("demo");
x.innerHTML = this.firstName + " " + this.lastName;
}
}
let display = person.display.bind(person);
setTimeout(display, 3000);
</script>
</body>
</html>
