Square brackets and what they mean in variable assignment

[User1014]

i.e.

var foo = [
{something: "blah", somethingelse: "blahblah"},
{something: "blah", anotherthing: "xxx"}
];

Do the "[]"'s just represent an array? and the "{}"'s represent a named
value array?

 

[RobG]

i.e.

var foo = [
{something: "blah", somethingelse: "blahblah"},
{something: "blah", anotherthing: "xxx"}
];

Do the "[]"'s just represent an array? and the "{}"'s represent a named
value array?

Yes. You are initialising foo with an array literal, where each element
of the array is an object literal. It is preferred to using new Array()
or new Object() and is called an initialiser, e.g.:

var anArray = [];
var anObject = {};

Incidentally, what you are calling a 'named value array' is a plain
javascript Object. Javascript arrays are objects too, but they have
some special properties and methods.