## Equal-value and Equal-type Comparison Operator

In JavaScript, Equal-value and equal-type comparison operator takes two operands, returns true if left and right operands are equal in both value and data type, or false otherwise.

## Syntax

`===`

symbol is used for comparison equal-value and equal-type operator.

```
a === 5 //returns true if a has a value of 5 and type of a is numeric
a === b //returns true if a and b has same value and type
```

Since equal-value and equal-type operator does check both type and value, the following example illustrates the case.

```
a = 5 //a has a value of 5 (numeric)
a === '5' //returns false
a === 5 //returns true
```

## Examples

1. Check if value of `a`

is equal to `5`

.

```
var a = 5;
if (a === 5) {
console.log('a is 5');
} else {
console.log('a is not 5');
}
```

2. Check if values in `a`

and `b`

are equal to each other.

```
var a = 5;
var b = 7;
if (a === b) {
console.log('a and b are equal');
} else {
console.log('a and b are not equal');
}
```

3. Check if value in `a`

is equal to `5`

.

```
var a = '5';
if (a === 5) {
console.log('a is \'5\'');
} else {
console.log('a is not \'5\'');
}
```

`a`

is assigned with a string type value. Since comparison equal-value and equal-type operator checks both the type and value, it returns false.