schedule the execution of a function

Question

I have a simple addition function, it is working fine. But what I want is, the addition function want to execute after five seconds. How can I achieve this task with setTimeout.

Here is the addition function

function fun(a,b) {
  return (a+b)
}

fun(1,1)

Answer 1

Try this:

function fun(a, b) {
  return a + b
}

setTimeout(() => console.log(fun(1, 1)), 5000);

If you have a multiline function to execute:

setTimeout(() => {
  fun(1, 1);
  fun(3, 4)
}, 5000);

Since your requirement is a delay of five seconds and not five thousand miliseconds, you can improve the readability by specifying the number of seconds and then multiplying it by 1000:

setTimeout(() => {
  fun(1, 1);
}, 5 * 1000);

Don't forget that setTimeout is asynchronous, so any lines of code following fun(1, 1) will eventually be executed prior to fun

Answer 2

setTimeout(() => {
  fun(1, 1)
}, 5000);

Answer 3

function fun(a,b) {
  return (a+b)
}

setTimeout(fun(1,1), 5000);