Operators
Operators are applied to expressions using post-fix notation with a period (.
) as the separator. For example, if a
is a string, the lc()
operator, which creates a new string with the case of all characters in a
lowered, is applied to a
as follows:
a.lc()
Operators can be chained. The following expression splits a
into an array and then calculates the length of the resulting array:
a.split(re#;#).length()
Operators are syntactic sugar for normal function application. The left hand of the period (.) is inserted as the first argument of the function call. For example:
foo = function (self, arg1, arg2) { // `self` is the left hand side of `.` } // then use it "something".foo(1, 2) // which is the same as foo("something", 1, 2) // Another example: a.split(re#;#).length() // is the same as length(split(a, re#;#))
The following sections describe operators currently available. They are organized based on the kind of value on which they operate.
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