topic Help with Arcade If else statement in ArcGIS Online Questions

Help with Arcade If else statement

Jmoll — Mon, 16 Dec 2024 14:21:01 GMT

Please help me find the error in my code. I am trying to generate a link in a popup based on certain criteria for the address. I got it to work for one specific case but when I try the if else the code won't run.

if(($feature.STR_TYPE == "AV") && ($feature.PRE_DIR != NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20ave%20"+$feature.PRE_DIR+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20ave%20"+$feature.PRE_DIR;} else if (($feature.STR_TYPE == "AV") && ($feature.PRE_DIR = NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20ave"+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20ave";} else if (($feature.STR_TYPE != "AV") && ($feature.PRE_DIR != NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20+"+$feature.PRE_TYPE+"%20"+$feature.PRE_DIR+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20"$feature.PRE_TYPE+"%20"+$feature.PRE_DIR;} else if (($feature.STR_TYPE != "AV") && ($feature.PRE_DIR = NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20+"+$feature.PRE_TYPE+"%20"+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20"$feature.PRE_TYPE+;}

Re: Help with Arcade If else statement

KenBuja — Mon, 16 Dec 2024 14:17:54 GMT

When posting code, please us the "Insert/Edit code sample" button. It's much easier to read and analyze rather that trying to replicate it from an image

Re: Help with Arcade If else statement

JoshuaBixby — Mon, 16 Dec 2024 15:14:18 GMT

It also helps to post the specific error message rather than saying "the code won't run."

~~Although ArcGIS Arcade looks like JavaScript, it isn't JavaScript. There is no "else if" construct in Arcade, refer to~~ ~~If - else | ArcGIS Arcade | Esri Developer.~~

Additionally, there is almost always a better logical construct/function than using large if/else blocks. I encourage you to explore using When.

Re: Help with Arcade If else statement

KenBuja — Mon, 16 Dec 2024 14:44:07 GMT

You were missing a extra "=" on line 3

$feature.PRE_DIR == NULL

if(($feature.STR_TYPE == "AV") && ($feature.PRE_DIR != NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20ave%20"+$feature.PRE_DIR+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20ave%20"+$feature.PRE_DIR;} else if (($feature.STR_TYPE == "AV") && ($feature.PRE_DIR == NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20ave"+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20ave";} else if (($feature.STR_TYPE != "AV") && ($feature.PRE_DIR != NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20+"+$feature.PRE_TYPE+"%20"+$feature.PRE_DIR+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20"$feature.PRE_TYPE+"%20"+$feature.PRE_DIR;} else if (($feature.STR_TYPE != "AV") && ($feature.PRE_DIR = NULL)){ return "http://fileshare.napoleonohio.com/vfolder_frame.ghp?vfolder=/Address%20Files/"+$feature.STR_NAME+"%20+"+$feature.PRE_TYPE+"%20"+"/"+$feature.STR_NUM+"%20"+$feature.STR_NAME+"%20"$feature.PRE_TYPE+;}

Re: Help with Arcade If else statement

KenBuja — Mon, 16 Dec 2024 14:46:28 GMT

You can use "else if" in a if/else block, but I do agree that using When is a better solution.

Re: Help with Arcade If else statement

Jmoll — Mon, 16 Dec 2024 14:47:49 GMT

Thank you both, I fixed the error and will try to use When instead!

Re: Help with Arcade If else statement

JoshuaBixby — Mon, 16 Dec 2024 15:13:47 GMT

Ken, interesting, their documentation implies it isn't supported since they fully nest a single if/else statement within the else portion of another statement instead of using "else if" directly. I know there are certain common JavaScript constructs that Arcade doesn't support, I just thought "else if" was another.