The Math.SQRT2 is a in which is simply used to find the value of square root of 2, whose value is approximately 1.4142.
That is,
2  = 1.4142
between property and function in javascript.
Property in JavaScript is nothing but a value whereas method is a function this can be understood anith the help of a example given below.

```// car is an object.
var car = {};

// car.name is a propety of the given object.
car.name = "Audi",

// car.sayModel is a function of the given object.
car.sayModel = function() {
console.log("A8");
}

// printing property value.
console.log(car.name);

// printing function called value.
console.log(car.sayModel());
```

Output:

```> "Audi"
> "A8"
```

Here as we can see that property of the object car, is going to store the string as “Audi” and it can be accessed with car.name.
sayModel is a method i.e, a function of the object and it can be accessed with car.sayModel().
It can be noticed that sayModel is just a function which use ().
Syntax:

`Math.SQRT2;`

Parameters:

• Here nothing is passed as a parameter because, Math.SQRT2 is not a function but it is a property.
• Return Values:

• It simply returns the value of the value of square root of 2, whose value is approximate 1.4142.

Example:

```Input:
Math.SQRT2
Output:
1.4142135623730951```

Explanation:
Here simply value of square root of 2 is shown as ouput.

Let’s see JavaScript code for Math.SQRT1_2 property:
Code #1:

```// Here value of Math.SQRT2 is printed.
console.log(Math.SQRT2);
```

Output:

`> 1.4142135623730951`

Code #2:
Value of square root of 2 can be printed as in the form of function as shown below.

```// function is being called.
function get_Value_of_square_root()
{
return Math.SQRT2;
}

// function is calling for getting
// value of square root of 2
console.log(get_Value_of_square_root());
```

Output:

`> 1.4142135623730951`

Errors and Exceptions:

Application:

1. Its application is to find the value of square root of 2 which is done with the help of this property.In mathematics it needed a lot.
Let’s see JavaScript program on this application:
```// Value of Math.SQRT2 is printed.
console.log(Math.SQRT2);
```

Output:

`> 1.4142135623730951`

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