解决方法
Mozilla.org对不同文字的例子有非常好的解释.
Array Literals
An array literal is a list of zero or
more expressions,each of which
represents an array element,enclosed
in square brackets ([]). When you
create an array using an array
literal,it is initialized with the
specified values as its elements,and
its length is set to the number of
arguments specified.Object Literals
An object literal is a list of zero or more pairs of property names and associated values of an object,enclosed in curly braces ({}). You should not use an object literal at the beginning of a statement. This will lead to an error or not behave as you expect,because the { will be interpreted as the beginning of a block.