# Timeout

`setTimeout` adds the callback into the loop, in order that it was added. But you should also take into account that there *can* be some time between what you added and what you fired.

```javascript
console.log("a");

const time1 = setTimeout(() => {
  console.log("b");
}, 1);

const time2 = setTimeout(() => {
  console.log("c");
}, 10);

const time3 = setTimeout(() => {
  console.log("d");
}, 0);

console.log("e");
```

## What would the input be?

Initially I thought it'd be `a,e,d,b,c` but that's wrong because I was thinking that because the the setTimeout would take into account delay that it'd place the `d` before the `b`. However because the time that it takes for the `a,e` to print out is theoretically a millisecond that it'd might as well be the same time as 0. It's just that because in the eventloop the `b` was placed before the `c` then it would fire first.

{% hint style="info" %}
Answer: `a,e,b,d,c`
{% endhint %}

## Resources

* <https://www.youtube.com/watch?v=USbiLiF9NDY&t=194s>