Getting first 3 characters of month from date

[behappy_alwayz0401 (kibanauser0401)]

How can we get only the first three characters of the month from a date field using a scripted field in kibana painless? Using getMonth() fetches the entire month. thanks

[Marta_Bondyra]

Hi @behappy_alwayz0401,
try this:

def month = doc['order_date'].value.getMonth().toString().substring(0,3);
return month;