Comparison operators allow us to compare values and obtain a boolean result (true or false) according to the relationship between the values.
These operators allow us to compare two values and determine if they are equal, different, greater, or less than, and are essential for evaluating expressions and making decisions.
The arithmetic operators of JavaScript are:
| Operator | Name | Description |
|---|---|---|
== | Equality | Compares if two values are equal |
=== | Strict equality | Compares if two values and their type are identical |
!= | Inequality | Compares if two values are different |
!== | Strict inequality | Compares if two values and their type are not identical |
> | Greater than | Checks if one value is greater than another |
< | Less than | Checks if one value is less than another |
>= | Greater than or equal | Checks if one value is greater than or equal |
<= | Less than or equal | Checks if one value is less than or equal |
If you want to learn more about Comparison Operators
consult the Introduction to Programming Course read more
List of comparison operators
Equality (==)
The equality operator == compares two values and returns true if they are equal, false if they are different. This operator does not take into account the data type.
5 == 5; // true
5 == '5'; // true, comparison does not take into account the typeStrict Equality (===)
The strict equality operator === compares two values and returns true if they are equal and of the same type, false if they are different.
5 === 5; // true
5 === '5'; // false, the types are differentInequality (!=)
The inequality operator != compares two values and returns true if they are different, false if they are equal. This operator does not take into account the data type.
5 != 3; // true
5 != '5'; // false, comparison does not take into account the typeStrict Inequality (!==)
The strict inequality operator !== compares two values and returns true if they are different or of different types, false if they are equal and of the same type.
5 !== 3; // true
5 !== '5'; // true, the types are differentGreater than (>), Greater than or equal (>=)
These operators compare two numerical values and return true if the first value is greater (or greater than or equal) than the second, false if it is not.
5 > 3; // true
5 >= 5; // trueLess than (<), Less than or equal (<=)
These operators compare two numerical values and return true if the first value is less (or less than or equal) than the second, false if it is not.
5 < 10; // true
5 <= 5; // true