JavaScript location.href 调用是异步的吗？

Question

function fun(){
    console.log("Hi");
    window.location.href="http://www.google.com";
    console.log("Hello, how are you");
    alert("I am good");
    fun1();
}

function fun1(){
    console.log("Whats up??");
}

In the above lines of code the location.href is getting called before console.log("Hello, how are you") , alert and fun1() .

When I call the fun() it executes all the statements below location.href and then it redirects to https://www.google.com . Is the location.href call asynchronous in nature, and if not then what is happening?

I thought the moment it redirects the user to other page, the lines of code below it would never execute.

Any help/explanation is appreciated!

Answer 1

A browser will execute code after window.location.href = "http://google.com" until the browser goes to the next web address. As such, the number of lines that will be executed depends on some combination of the browser's speed or later synchronous input from the user (an alert in your case).