abs abs(Number): Number Returns the absolute value of a number. Parameters Name Description number The number to evaluate. Parameters Name Description number The number to apply the operation to. Example This example returns the absolute value of the specified numbers. Source %dw 2.0 output application/json --- [ abs(-2), abs(2.5), abs(-3.4), abs(3) ] Output [ 2, 2.5, 3.4, 3 ]