Mule 4 Exam - Question 47

Question

What does the minus operator do in DataWeave?

Examice · Accepted Answer

In DataWeave, the minus operator is used to remove items from a list. When applied to an array, it removes the specified elements. This usage aligns with DataWeave's approach to data manipulation where operators are often overloaded to work with collections in addition to their traditional arithmetic roles.

Esquerdo · Answer

removes an iten from an array 
https://docs.mulesoft.com/dataweave/2.4/dw-operators

Kokulan1763 · Answer

If we apply to array. it will remove element. EX: [1,2,3] - 2 ==> o/p ==>[1,3]
If we apply to number, it will decrease by 1. EX: 5-1 ==> o/p ==> 4

ck0241 · Answer

Why is it removes item from list? It could also be decrements by right?

edilberto1 · Answer

It is in the reference guide at https://docs.mulesoft.com/mule-runtime/4.3/dw-operators Prepend, Append, and Remove Operators for Arrays section, it isn't used as an arithmetic operator into this scope.

Ella_Z · Answer

Looks A&B are correct, but maybe "by one" leads to incorrect? I am not sure. 	
https://docs.mulesoft.com/mule-runtime/4.3/dw-operators	
1. For subtraction. 
2. Removes a specified element of any supported type from an array.

abhhiiiiiii · Answer

hello the letter B is a change in perspective of fellow harry potter enthusiats aka SIRUS my best mate

Mule 4 Exam - Question 47

Discussion