Statement blocks

irScript statement blocks are enclosed by opening/closing curly braces ({' and '}) and form a variable declaration scope; that is, variables declared within a statement block are local to that block and available to any child statements blocks declared within the original block.

Statement blocks contain one or more statements, executed in sequence:

var x = 45; 
var x = 22.3; /ERROR: 'x' already declared

{ 
var y = 67; 
}

var z = y; // ERROR: 'y' not currently in scope

An implicit global statement block exists for every irScript instance; this global block is not

surrounded by curly braces.