Quick JavaScript Learning In Just 3 Days: Fast-Track Learning Course by R Vijay K

Author:R, Vijay K [R, Vijay K]
Language: eng
Format: azw3
Published: 2016-02-08T16:00:00+00:00

Undefined, Empty and Null

Undefined Data Types – Data types which are not defined with any value called undefined data types.

Example:

var x ; // x is undefined

var Bonnie; //Bonnie is undefined

Empty

Example:

var x = “ “ ; // x is empty value

Null – Null is nothing but type is an object.

Example:

var x = null; // x is null

JavaScript Operators

JavaScript has many operators like arithmetic operators, assignment operators, string operators, logical operators and comparison operators.

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