2010 06 02 instances and default values
When you create instances of String
or Number
, they take the default value (""
for strings and 0
for numbers). This is not the same for Object
and Array
.
var a = new Number;
a == 0 // true
var a = new String;
a == "" // true
var a = new Object;
a == {} // false
var a = new Array;
a == [] // false
This is even more confusing when using the JSON-style syntax to create objects and arrays.
var a = {};
a == {} // false
var a = [];
a == [] // false
-- @remi
(Never forget: ==== - @brianleroux)