Page 12 - JavaScript
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AND 145
OR 145
NOT 145
Abstract Equality (==) 146
7.2.13 Abstract Equality Comparison 146
Examples: 146
Relational operators (<, <=, >, >=) 147
Inequality 147
Logic Operators with Non-boolean values (boolean coercion) 148
Null and Undefined 149
The differences between null and undefined 149
The similarities between null and undefined 149
Using undefined 150
NaN Property of the Global Object 150
Checking if a value is NaN 150
Points to note 152
Short-circuiting in boolean operators 152
Abstract equality / inequality and type conversion 154
The Problem 154
The Solution 155
Empty Array 156
Equality comparison operations 156
SameValue 156
SameValueZero 156
Strict Equality Comparison 157
Abstract Equality Comparison 158
Grouping multiple logic statements 158
Automatic Type Conversions 159
List of Comparison Operators 159
Bit fields to optimise comparison of multi state data 160
Chapter 22: Conditions 162
