# While (mouseIsPressed) infinite loop nasty
**URL:** https://discourse.processing.org/t/while-mouseispressed-infinite-loop-nasty/7962
**Category:** Coding Questions
**Created:** [January 30, 2019, 2:46pm UTC](https://discourse.processing.org/t/while-mouseispressed-infinite-loop-nasty/7962 "2019-01-30T14:46:08Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@hellonearthis](https://discourse.processing.org/u/hellonearthis)
#### Post date: [January 30, 2019, 2:46pm UTC](https://discourse.processing.org/t/while-mouseispressed-infinite-loop-nasty/7962/1 "2019-01-30T14:46:08Z")
I was trying to use a while statement in the draw loop.
I was thinking it would stop the draw loop until the mouse was released,
but it just goes into an infinite loop.
```auto
let redoLines = true
function draw() {
while (mouseIsPressed) { redoLines = true }
if (redoLines){
doLines()
redoLines = false
}
}
```
eak, I guess it was to nasty bit of nasty code.
So going have to use the not so nasty,
```auto
function mouseReleased() {
redoLines = false
}
```
Still, I was hoping my nasty code would have worked.
---
### Author:  [@GoToLoop](https://discourse.processing.org/u/GoToLoop)
#### Post date: [January 30, 2019, 3:11pm UTC](https://discourse.processing.org/t/while-mouseispressed-infinite-loop-nasty/7962/2 "2019-01-30T15:11:54Z")
> [@hellonearthis](#):
>
> Still, I was hoping my nasty code would have worked.
Given the thread responsible to change the value of _mouseIsPressed_ is the same 1 executing your `while ()` “infinite” loop, it means it’ll never get the chance to do so. 😬
---
### Author:  [@HD161693](https://discourse.processing.org/u/HD161693)
#### Post date: [January 30, 2019, 6:06pm UTC](https://discourse.processing.org/t/while-mouseispressed-infinite-loop-nasty/7962/3 "2019-01-30T18:06:12Z")
It’s not nasty, it’s a totally reasonable idea! And you did successfully stop the draw loop.
If you swap that `while` out for an `if`, you are in business.