perform null check in Dataweave

 

isEmpty is a dataweave core function that can be used to perform null check In Mule 4.

It works on Array,String and Object and gives the result accordingly

Examples:

%dw 2.0
output application/json
---
[isEmpty([]), isEmpty([123]) ]

Result

[True,false]

Examples:

%dw 2.0
output application/json
---
[ isEmpty(""), isEmpty("string") ]

Result

[True,false]

isEmpty(object)

it will return true if the object is empty else false

Example:

%dw 2.0
output application/json
---
isEmpty({})

Result

true

 

  
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