topic Re: Parse a featureLayer label expression in ArcGIS JavaScript Maps SDK Questions

Parse a featureLayer label expression

Anonymous User — Thu, 23 Mar 2017 16:17:08 GMT

I need to parse a string out of a featurelayer field to create a label, can anyone point me to a solution. The labelExpressionInfo looks like the following;

var HYjson = {

labelExpressionInfo:{

expression: "$feature.link"

}

};

what I need to do would be something that accomplishes what would be a substr(-5) on the expression.

Re: Parse a featureLayer label expression

thejuskambi — Thu, 23 Mar 2017 17:06:28 GMT

For Label Expressions, you can use the Arcade format. In Arcade to get a part of the string we use below expression.

var expression = "mid($feature.LABELFIELD, 2, 3)";‍

here you get the characters from 3 to 5.

This link is not for JS api but, contains lot of tip on how to use Arcade.Specify text for labels—ArcGIS Pro | ArcGIS Desktop