Class AbsFunction

java.lang.Object
com.api.jsonata4java.expressions.functions.FunctionBase
com.api.jsonata4java.expressions.functions.AbsFunction

public class AbsFunction extends FunctionBase
Returns the absolute value of the number parameter, i.e. if the number is negative, it returns the positive value.

http://docs.jsonata.org/numeric-functions.html
$abs(number)
If number is not specified (i.e. this function is invoked with no arguments), then the context value is used as the value of number.

Examples:
$abs(5)==5
$abs(-5)==5

NOTE: FROM THE java.math::abs() FUNCTION JAVADOC:
Note that if the argument is equal to the value of Long.MIN_VALUE, the most negative representable long value, the result is that same value, which is negative.