The Math.SQRT2 is a property in JavaScript which is simply used to find the value of square root of 2, whose value is approximately 1.4142.
That is,
√ 2 = 1.4142
Difference 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;
- Here nothing is passed as a parameter because, Math.SQRT2 is not a function but it is a property.
- It simply returns the value of the value of square root of 2, whose value is approximate 1.4142.
Parameters:
Return Values:
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:
- Here we consider Math.SQRT2 as a function but in actual it is a property that is why error as output is being shown.
// Here we consider Math.SQRT2 as a function but in actual it
// is a property that is why error as output is being shown.
console.log(Math.SQRT2(12));
Output:
Error: Math.SQRT2 is not a function
- 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
Application:
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