() (parentheses)

Availability

Flash Player 4.

Usage

(expression1, expression2)
function(parameter1,..., parameterN)

Parameters

expression1, expression2 Numbers, strings, variables, or text.

function The function to be performed on the contents of the parentheses.

parameter1...parameterN A series of parameters to execute before the results are passed as parameters to the function outside the parentheses.

Returns

Nothing.

Description

Operator; performs a grouping operation on one or more parameters, or surrounds one or more parameters and passes them as parameters to a function outside the parentheses.

Usage 1: Controls the order in which the operators are executed in the expression. Parentheses override the normal precedence order and cause the expressions within the parentheses to be evaluated first. When parentheses are nested, the contents of the innermost parentheses are evaluated before the contents of the outer ones.

Usage 2: Surrounds one or more parameters and passes them as parameters to the function outside the parentheses.

Example

Usage 1: The following statements illustrate the use of parentheses to control the order in which expressions are executed. The value of each expression is displayed below each line, as follows:

trace((2 + 3) * (4 + 5));
// displays 45

trace(2 + (3 * (4 + 5)));
// displays 29

trace(2 + (3 * 4) + 5);
// displays 19

Usage 2: The following examples illustrate the use of parentheses with functions.

getDate();

invoice(item, amount);

function traceParameter(param){
  trace(param);
}
traceParameter(2*2);