# IF statement **URL:** \ **Category:** Uncategorized\ **Tags:** dynamo\ **Created:** [July 28, 2022, 3:24pm UTC](https://forum.dynamobim.com/t/if-statement/79244 "2022-07-28T15:24:54Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![outmanechamekh](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@outmanechamekh](https://forum.dynamobim.com/u/outmanechamekh)\ **Post date:** [July 28, 2022, 3:24pm UTC](https://forum.dynamobim.com/t/if-statement/79244/1 "2022-07-28T15:24:54Z")
hi; I have created a code block for the if statement, but when I put a list for the value of x, I don’t get any result. x; p = [Imperative] { if(x==90) {return = x+90; } else { return = x; } }; Can someone point out my error? ![Dynamo IF](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/7/4/74bb86b024d945f73f5bf8a3a35f25412343a567.png) ---
**Author:** ![Draxl\_Andreas](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/draxl_andreas/32/145744_2.png) [@Draxl\_Andreas](https://forum.dynamobim.com/u/Draxl_Andreas)\ **Post date:** [July 28, 2022, 3:29pm UTC](https://forum.dynamobim.com/t/if-statement/79244/2 "2022-07-28T15:29:14Z")
@outmanechamekh , at least it is a workaround 😉 ![grafik](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/2/3/23f2b94590b8c1d1604fc7960a4519318c101e00.png) ---
**Author:** ![outmanechamekh](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@outmanechamekh](https://forum.dynamobim.com/u/outmanechamekh)\ **Post date:** [July 28, 2022, 3:38pm UTC](https://forum.dynamobim.com/t/if-statement/79244/3 "2022-07-28T15:38:09Z")
Thanks for help, But why the first code does not work. One more thing I have the same problem with Python script ![Dynamo IF.1](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/4/4/44fb0e2be6cef2c7db050aa73a63dc28c5c6ea57.png) ---
**Author:** ![Draxl\_Andreas](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/draxl_andreas/32/145744_2.png) [@Draxl\_Andreas](https://forum.dynamobim.com/u/Draxl_Andreas)\ **Post date:** [July 28, 2022, 3:43pm UTC](https://forum.dynamobim.com/t/if-statement/79244/4 "2022-07-28T15:43:32Z")
@outmanechamekh , ```auto nums = IN[0] OUT = [] for i in nums: if i == 90: OUT.append(i+90) else: OUT.append(i) ``` ![2022-07-28_17h43_00](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/9/4/94311c1817b8ce8b1955e19f79691ae5280a6a69.png) in a programm language you have to explan each step! at least Python is not asking “why…” ---
**Author:** ![christian.stan](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/christian.stan/32/166296_2.png) [@christian.stan](https://forum.dynamobim.com/u/christian.stan)\ **Post date:** [July 28, 2022, 4:03pm UTC](https://forum.dynamobim.com/t/if-statement/79244/6 "2022-07-28T16:03:20Z")
Hello ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/e/feaca62117b0769e02435191216bef63a0f3c2f9.png) Code Block: ```auto x; Nb_item=DSCore.List.Count(x); z=[]; p=[Imperative] { for (i in 0..(Nb_item-1)) { if (x[i]==90) { z[i]=x[i]+90; } else { z[i] =x[i]; } } return z; }; ``` Cordially Christian.stan ---
**Author:** ![Draxl\_Andreas](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/draxl_andreas/32/145744_2.png) [@Draxl\_Andreas](https://forum.dynamobim.com/u/Draxl_Andreas)\ **Post date:** [July 28, 2022, 4:47pm UTC](https://forum.dynamobim.com/t/if-statement/79244/7 "2022-07-28T16:47:04Z")
@christian.stan , where did you get this knowlage, for me its hard to learn, based the recources here… 😉, is there more to designscript as the guide? ---
**Author:** ![outmanechamekh](https://avatars.discourse-cdn.com/v4/letter/o/3ab097/32.png) [@outmanechamekh](https://forum.dynamobim.com/u/outmanechamekh)\ **Post date:** [July 28, 2022, 4:56pm UTC](https://forum.dynamobim.com/t/if-statement/79244/8 "2022-07-28T16:56:21Z")
> [@Draxl\_Andreas](#): > > based the recources here Based the recources here and youtube. I don’t have any other sources or guide. 😅 ---
**Author:** ![christian.stan](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/christian.stan/32/166296_2.png) [@christian.stan](https://forum.dynamobim.com/u/christian.stan)\ **Post date:** [July 28, 2022, 6:07pm UTC](https://forum.dynamobim.com/t/if-statement/79244/9 "2022-07-28T18:07:32Z")
Hello, I like the work of Mr. Sol Amour (Will stop, he will think that I am a stalker) +designscript guide +I try to visualize and understand the scripts of Mr. Vikram Subbaiah and so many other people (I absorb) Here is a knowledge slider 😉 ( ![image](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/c/e/ceeaff26ffd85349e1833d4d879a19933c1c784b.png) code block: ```auto [Line.ByStartPointEndPoint( Point.ByCoordinates(0,0), Point.ByCoordinates(10,0)), Line.ByStartPointEndPoint( Point.ByCoordinates(0,-0.2), Point.ByCoordinates(0,0.2)), Line.ByStartPointEndPoint( Point.ByCoordinates(10,-0.2), Point.ByCoordinates(10,0.2))]; GeometryColor.ByGeometryColor( Cylinder.ByPointsRadius(Point.ByCoordinates(0,0), Point.ByCoordinates(Knowledge*10,0),0.2), Color.ByARGB(255,0,255,0)); ``` good evening Cordially christian.stan > [@Kindly please interpretation](https://forum.dynamobim.com/t/kindly-please-interpretation/77995/4): > > Hello here is shared knowledge good reading and setting Cordially christian.stan ---
**Author:** ![jacob.small](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/jacob.small/32/161030_2.png) [@jacob.small](https://forum.dynamobim.com/u/jacob.small)\ **Post date:** [July 29, 2022, 12:21am UTC](https://forum.dynamobim.com/t/if-statement/79244/10 "2022-07-29T00:21:35Z")
For your python issue your if statement is asking “is this list equal to 90? and is 180?” Because you have a list you will need to iterate over it.