Relational operators are also known as comparison operators.
They are used to find the relationship between two values or compare the relationship between two values; on comparison, they yield the result true or false.
Less than (<) The < operator evaluates to true if its first operand is less than its second operand; otherwise it evaluates to false.
Greater than (>) The > operator evaluates to true if its first operand is greater than its second operand; otherwise, it evaluates to false.
Less than or equal (<=) The <= operator evaluates to true if its first operand is less than or equal to its second operand; otherwise, it evaluates to false.
Greater than or equal (>=) The >= operator evaluates to true if its first operand is greater than or equal to its second operand; otherwise, it evaluates to false.
Example 1
When both operands are numeric, they are compared normally:
a= 5 < 7
b= 8 <= 8
c= 9 >= 1
d= true < false
console.log(a); // Output : true
console.log(b); // Output : true
console.log(c); // Output : true
console.log(d); // Output : false
Example 2
When both operands are strings, they are compared lexicographically (accordingto alphabetical order)
a= 'x' < 'y' // Output : true
b= '5' < '9' // Output : true
c= '10' > '15' // Output : false
Example 3
When one operand is a string and the other is a number, the string is converted to a number before comparison:
a= '1' < 2 // Output : true
b= '3' > 2 // Output : true
c= '10' > '15' // Output : false
Example 4
When the string is non-numeric, numeric conversion returns NaN (not-a-number). Comparing with NaN always returns false:
a= 1 < 'xyz' // Output : false
b= 1 > 'xyz' // Output : false
