ECMA-262 Core: JavaScript Null Data Type



Navigation Aids -- This Page        Navigation Aids -- This Topic        Navigation Aids -- This Site








Introduction And Review

The ECMA-262 standard defines the term Null Type as: the type Null has exactly one value called null.

The Null data type is one of five ECMAScript primitive types. The other four are: Number, Boolean, String and Undefined. All primitive types have a definite (fixed) size except for the String type.

The Null type is distinguished from other types using a dynamic or weak typing method. The method involves interrogating the value token. The Null type can have only one value and that value is null.

Null Types

Top            

Rx4AJAX        About Us | Topic Index | Contact Us | Privacy Policy | 2008 This Site Built By PPThompson