Extremely large or small numbers such as 10^9 or 10^-9 can be written using scientific notation if necessary. Numbers can be wrapped as objects of type
Number, which essentially does the same thing and creates a number according to the data type.
The sample code above shows four different examples of variables holding numbers. The first line shows an integer declaration as the integer 5 is being declared into the variable
value. The second line assigns a rough estimate of PI into the variable
pi. The third line creates a new object using
new Number(), which essentially does the same thing as the two statements above. Creating Number objects slows down execution speed and complicates the code, so is not recommended. The last variable declaration assigns