Relational operators are used in relational expressions and always yield a Boolean result.
Although generally considered to be member of the relational operator set, equality and non-equality tests are classified as equality operators in the ECMA standard.
The following table lists all operators that could be loosely classified or specifically classified as relational operators:
|===||Identically equal to|
|!=||NOT equal to|
|!==||NOT identically equal to|
|<=||Less than or equal to|
|>=||Greater than or equal to|
It follows that all equality operators are generally classifiable as relational operators and all relational operators are members of the set of logical operators, since they all yield a Boolean value as a result.
ECMA 262 edition 2 - section - 11.8
ECMA 262 edition 3 - section - 11.8