js+函数怎么调用

function greet(name) {
    console.log("Hello, " + name);
}

greet("Alice"); // 直接调用

const person = {
    name: "Bob",
    greet: function() {
        console.log("Hello, " + this.name);
    }
};

person.greet(); // 方法调用

const add = (a, b) => a + b;
console.log(add(2, 3)); // 箭头函数调用

function Person(name) {
    this.name = name;
    this.greet = function() {
        console.log("Hello, " + this.name);
    };
}

const alice = new Person("Alice");
alice.greet(); // 构造函数调用

<button id="myButton">Click me</button>
<script>
document.getElementById("myButton").addEventListener("click", function() {
    console.log("Button clicked!");
});
</script>

setTimeout(function() {
    console.log("This runs after 2 seconds.");
}, 2000);