# JavaScript Comparison Operators

Last Updated : 09 Apr, 2024

JavaScript comparison operators are used to check if a condition is true or false. The comparison operators are used in logical expressions to determine their equality or differences in variables or values.

## Comparison Operators List

There are many comparison operators as shown in the table with the description.

OPERATOR NAME

USAGE

OPERATION

Equality Operatora == bCompares the equality of two operators
Inequality Operatora != bCompares inequality of two operators
Strict Equality Operatora === bCompares both the value and type of the operand
Strict Inequality Operatora !== bCompares inequality with type
Greater than Operatora > bChecks if the left operator is greater than the right operator
Greater than or equal Operator a >= bChecks if the left operator is greater than or equal to the right operator
Less than Operatora < bChecks if the left operator is smaller than the right operator
Less than or equal Operatora <= bChecks if the left operator is smaller than or equal to the right operator

## Equality Operator (==)

The Equality operator is used to compare the equality of two operands. If equal then the condition is true otherwise false.

Example: Below example illustrates the (==) operator in JavaScript.

Javascript ```// Illustration of (==) operator let val1 = 5; let val2 = '5'; // Checking of operands console.log(val1 == 5); console.log(val2 == 5); console.log(val1 == val1); // Check against null and boolean value console.log(0 == false); console.log(0 == null); ```

Output
```true
true
true
true
false
```

## Inequality Operator (!=)

The Inequality Operator is used to compare the inequality of two operands. If equal then the condition is false otherwise true.

Example: Below examples illustrate the (!=) operator in JavaScript.

Javascript ```// Illustration of (!=) operator let val1 = 5; let val2 = '5'; // Checking of operands console.log(val1 != 6); console.log(val2 != '5'); console.log(val1 != val2); // Check against null and boolean value console.log(0 != false); console.log(0 != null); ```

Output
```true
false
false
false
true
```

## Strict equality Operator (===)

The Strict equality Operator is used to compare the equality of two operands with type. If both value and type are equal then the condition is true otherwise false.

Example: Below examples illustrate the (===) operator in JavaScript.

Javascript ```// Illustration of (===) operator let val1 = 5; let val2 = '5'; // Checking of operands console.log(val1 === 6); console.log(val2 === '5'); console.log(val1 === val2); // Check against null and boolean value console.log(0 === false); console.log(0 === null); ```

Output
```false
true
false
false
false
```

## Strict inequality Operator (!==)

The Strict inequality Operator is used to compare the inequality of two operands with type. If both value and type are not equal then the condition is true otherwise false.

Example: Below examples illustrate the (!==) operator in JavaScript.

Javascript ```// Illustration of (!==) operator let val1 = 5; let val2 = '5'; // Checking of operands console.log(val1 !== 6); console.log(val2 !== '5'); console.log(val1 !== val2); // Check against null and boolean value console.log(0 !== false); console.log(0 !== null); ```

Output
```true
false
true
true
true
```

## Greater than Operator (>)

The Greater than Operator is used to check whether the left-side value is greater than the right-side value. If the value is greater then the condition is true otherwise false.

Example: Below examples illustrate the (>) operator in JavaScript.

Javascript ```// Illustration of (>) operator let val1 = 5; let val2 = "5"; // Checking of operands console.log(val1 > 0); console.log(val2 > "10"); console.log(val1 > "10"); console.log(val2 > 0); ```

Output
```true
true
false
true
```

## Greater than or equal Operator (>=)

The Greater than or equal Operator is used to check whether the left side operand is greater than or equal to the right side operand. If the value is greater than or equal then the condition is true otherwise false.

Example: Below examples illustrate the (>=) operator in JavaScript.

Javascript ```// Illustration of (>=) operator let val1 = 5; let val2 = "5"; // Checking of operands console.log(val1 >= 5); console.log(val2 >= "15"); console.log(val1 >= "5"); console.log(val2 >= 15); ```

Output
```true
true
true
false
```

## Less than Operator (<)

The Less than Operator is used to check whether the left-side value is less than the right-side value. If yes then the condition is true otherwise false.

Example: Below examples illustrate the (<) operator in JavaScript.

Javascript ```// Illustration of (<) operator let val1 = 5; let val2 = "5"; // Checking of operands console.log(val1 < 15); console.log(val2 < "0"); console.log(val1 < "0"); console.log(val2 < 15); ```

Output
```true
false
false
true
```

## Less than or equal Operator (<=)

The Less than or equal Operator is used to check whether the left side operand value is less than or equal to the right side operand value. If yes then the condition is true otherwise false.

Example: Below examples illustrate the (<=) operator in JavaScript.

Javascript ```// Illustration of (<=) operator let val1 = 5; let val2 = "5"; // Checking of operands console.log(val1 <= 15); console.log(val2 <= "0"); console.log(val1 <= "0"); console.log(val2 <= 15); ```

Output
```true
false
false
true
```

Supported Browsers: The browsers supported by all JavaScript Comparison operators are listed below:

We have a complete list of Javascript operators, to check those please go through this Javascript Operators Complete reference article.

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.

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