If-else logic expression in field calculator

How do you do an if statement in the field calculator?

How To: Use IF statements in the Field Calculator

1. Classify a field according to a range of values from another field.
2. Copy values from one field to another if the value contains a number.
3. Copy values from one of two fields to another field.
4. Change the value of a field if it meets the criteria of two fields.

Can you use regular expression in field A in calculator?

Summary. The Field Calculator (Regular Expression) Processor can be used to leverage the power of regular expressions to identify a pattern within a target field and extract the substrings from received events.

How to use if statements in the calculator field tool in ArcGIS Pro?

How To: Use IF statements in the Calculator Field tool in ArcGIS…

1. Populate the field based on the value of another field.
2. Classify the field according to a range of values from another field.
3. Copy values from one field to another if the value contains a number.
4. Copy values from one of two fields to another field.